Yes -- you have to "listen" to your body. This is coming from another "stubborn" person -- just ask my ex husband!!! LOL I was always one to push through the pain, heat, whatever, to finish what I had started. With three kids, somebody had to do what needed to be done. But MS has definitely slowed me down big time now. It was a hard lesson to learn, but after falling many times, mainly from the muscle fatigue, I realized I had to change. Now, being in this powerchair just about all the time, I've really slowed down but still like to do what I comfortably can. If we just give up completely, we may as well be dead. Good luck and start "listening".
Take care.......