I am a 53 year old female. I have had a problem for a few years but it is increasing in severity in the past few months. If I walk up a fight of stairs more than a few times in a day (and I struggle at those times but make it without stopping) I cannot go up the stairs more than a few steps and have to stop. It is like my muscles will not expand or contract back and are worn out. It is very painful waiting for them to "recover?" only to take a few more step and have to wait again. If there is any activity in leg/butt muscles they just quit working. I also have episodes of if I am laying on the floor or at the beach, I want to get up but I cannot seem to get the body (lower) to cooperate with what I am telling it to do. It takes me a few minutes to even be able to roll over and struggle to get up. It is like I am frozen in that position and even though I want to get up and go I cannot. It is like I am waiting for the signal from brain to catch up with muscle activity? I just don't know where to start. I do not take medicine and would prefer a more natural approach but know I probably need some testing but from who? What type of doctor or any suggestions on what to research? I have been dealing with this for a long time but always pushed it aside because I could still function for the most part. It is just starting to effect my life and I lay down allot. Sitting is not a good thing for me either. My whole body hurts if I sit too long.