I am 48 years old and take pretty good care of myself. I power walk a couple miles a day when I'm feeling well, eat healthy most of the time, seldom drink and in moderation. I am reasonably active, mow lawn, work, take stairs before elevators, keep a clean house, up and down stairs for laundry and things, I don't watch t.v. I am a smoker. I have been under a lot of stress, I lost 14 lbs without trying and I'm down to 113 lbs. I've been thin my whole life and stress has caused me to lose weight in the past but I'm eating plenty. I've actually started eating whatever I want just to put a few lbs back on. I'm about 5-6 and I think I should be about 120to 125. My muscles hurt. First I blamed the physical job I've been doing for 14 yrs, then stress, then an antidepressant I was on and went off but it is at the point that my back aches no matter what I do, my legs and arms ache from just about anything I do, an example was painting yesterday. Some days it's so bad that I have to lift my leg to uncross them with my hand. I have had to ask my son to help me out of a chair. I am currently caring for an 89 year old woman and she has some exercises she needs to do per her physical therapist. I did them with her today and I'm sure you can imagine they should have been no problem for me but every part of my body that I exercised hurt. I am very worried, this has been going on for months. I really have changed the things I thought it could be. My job is no longer physically demanding, I went off the antidepressant about 2 weeks ago and I continue to take good care of myself but this is making that very difficult. I don't feel like walking and exercising when I ache this much. Could it be something serious or should I continue to try and push through it?