Don’t get too excited. Turns out that dark chocolate (at least 50% to 70% cocoa) can give you a boost of a plant compound called flavanol. As with garlic, this antioxidant can raise your nitric oxide levels and widen blood vessels. That can make your blood pressure drop a notch. It goes without saying that a little bit of chocolate is all you need.
You didn’t mention that almost all blood pressure meds cause blood sugar to rise which is a real problem if you are pre-diabetic and trying hard to keep your numbers down so that you won’t have to take diabetic meds. My husband’s BP meds make him feel bad and make his blood sugar rise. If he stops the BP meds he feels great but his BP goes up. Happens on each BP med he’s taken. 

As blood pressure tends to vary somewhat from day to day, it’s recommended to only diagnose someone with high blood pressure if they have given a repeatedly high reading. If the average of either of the readings (either the systolic or diastolic) is higher than the norm, it will be considered an elevated blood pressure. That is, an average of 150/85 or 135/100 over readings on several occassions will be considered too high.
Research on the Dietary Approaches to Stop Hypertension (DASH) diet shows that eating at least 9 servings of fruits and vegetables each day can reduce blood pressure about as much as medication. Fruits and vegetables are high in potassium, which helps to balance sodium in your cells to reduce pressure in your blood vessel and has shown to lower risk for stroke. Try to incorporate at least one piece or serving of a fruit or vegetable (or both) into each snack, and include about ½ plate of fruits and vegetables into all your meals.

Your mother’s situation does sound worrisome, as you are describing falls and also some concerns with thinking. Her age of 96 is pretty old, so clinical research studies don’t provide much guidance on what is optimal blood pressure. Unless she has compelling medical reasons to aim for a SBP of 120, most geriatricians would probably reduce her BP meds and try to aim for a SBP in the 130s or 140s. So you may want to ask your mother’s doctor to discuss with you what is a suitable BP goal for her, and whether a reduction in BP meds might be reasonable.
Again, foods that lower blood pressure are usually high in potassium and similar nutrients. Famously rich in blood pressure-lowering potassium, one banana contains about 420 milligrams, or 11 percent of the 4,700 milligrams the American Heart Association recommends people consume daily. Surprisingly, however, many veggies are actually higher in potassium than these popular fruits. A cup of Swiss chard boasts 960 milligrams, a cup of cooked white beans has nearly 1,200 milligrams, and a whole avocado has 975 milligrams. 

i am currently 63 years old and was on a higher daily dose of zestoretic from about 1992-2010 for 140/90 BP and slowly reduced my need (lower mg) for zestoretic by paying more attention to my health (diet, weight, exercise, etc), eventually (about 2014) i got down to 10mg of lisinopril (no more hctz) about once per week or as needed since i was monitoring BP at home. in late 2016, a new doctor recommended that i stop taking 10mg lisinopril, and my blood pressure was usually low about 100/60 after breakfast or exercise and would go up to about 130/90 in the evening. in 2017, my BP was 150/90 the morning before hernia surgery. anyway, long story short my BP seems to fluctuate a lot during the day, low (100/60) after exercise, low after breakfast, high (130/90) before going to bed. the low BP periods get shorter and shorter so i went back to taking 10mg lisinopril as needed, about once every 2 or 3 weeks and the low BP periods get long again. also my pulse seems to get higher (80) when my BP gets lower 100/60 and my pulse gets lower (70) when my BP gets higher (130/90). anyway, i recently moved so probably need to see another new doctor, but thought i would just let you know what is going on.
It's time to heed your partner's complaints and get that snoring checked out. Loud, incessant snores are a symptom of obstructive sleep apnea (OSA), a disorder characterized by brief yet potentially life-threatening interruptions in breathing during sleep. And many sleep apnea sufferers also have high levels of aldosterone, a hormone that can boost blood pressure, according to University of Alabama researchers. In fact, it's estimated that sleep apnea affects half of people with high blood pressure.