I have gone to a whole plant based diet (Dr. Greger) for cardiovascular reasons including CAS, high cholesterol and high blood pressure (I exercise daily, aerobic and yoga, am normal weight, meditate, but have family genetic predisposition to these ... I am 61 years old) . Since going to plant based, I feel great and BP is going down. I feel great! However, I am having trouble sleeping through the night now. Weird. Wake at 3:00 and can t get back to sleep. Nothing else has changed. Any plant based ideas?