Uphill symptoms and conditions

I've been on Lisinopril for about five months. I'm a female, age 47 taking 20 mg once a day. My BP was 150/90 but now low at 100/62. Doc says my young age can support low BP for now. The chest pain and leg twitches are the worst. I'm constantly tired and find a lot of times that I just can't think clearly. I often awake at night with arms that have gone to sleep. Not sure though if the symptoms are from Lisinopril or the low blood pressure that it creates.

Wish me luck because I've decided to stay on the meds but try some lifestyle changes instead. I quit smoking two days ago but have often gone over a week and then caved for a cigarette. Only smoke about five cigs a day anyhow. Started walking when I quit, starting at a mile first (1/2 uphill.) Technically, I"m not overweight by charts but have never weighed this much in my life before. I"ve always had a slender, tall frame until just six years ago (turned 40?).

Also, not sure how much is stress related at every level of my symptoms. Working through a separation and hopefully divorce.. For now doc says stick with this med and lifestyle changes will win out.

Been taking Lipitor for over two years without any problem that I attributed to it. Started traiing for a marathon--never run before in my life. Steadily increasing thigh pain which i attributed to the training until I am in SEVERE pain mainly in my thighs. Can barely go up or down stairs or uphill or downhill. Had to stop running and can't even really even walk for exercise right now. Taking Ibuprofen like M&M's. Just met someone this week who told me that extreme exercise caused him to have the same symptoms. I am relieved to find that stopping the Lipitor might allow me to once again exercise and maybe even do the marathon with my training group. Wonder if my indigestion if from Lipitor also?

Lipitor, pravacol and zocor have the same effect on me. They are, swollen ankles, palpitations, dizziness, chest and stomach pain and nausea. Once I was hospitalized for a few days while tests were taken. The stress test had me running uphill on the treadmill. When my legs were about to give out, they decided it was not my heart. I have not been watching my diet, and my total cholesterol went up from 165, to 185. Doc wants me to increase zocor to double the dose. I don't want to do that. I'm 70 years old, work out and swim on a regular basis with no chest pain. Any suggestions??