Hi: You could call a local medical supply company and ask about a raised toilet seat. They'll be able to make suggestions about what might work best for you personally. Two different styles are: E-Z Lock Ö B304-Carex Toilet Seat Raised With Handles or 3 In One Commode. You can GOOGLE them and see what they look like. I'm sure that some models must come in various sizes, you'll just have to do some searches on the internet and call if you have local medical supply companies or good independent pharmacies.
Everyone is different when it comes to muscle pain after resurfacing. Some people have almost none and others have quite a bit. It doesn't seem to be specifically one type of people (fit, unfit, slender, heavy, young, old). Some people have it, others don't. Some has to do with the way in which your doctor does the surgery. You should check in with his office to discuss it and they may tell you it is not uncommon for their patients to have that specific pain.
I had
horrible muscle cramps in my op leg thigh for about 10 days after surgery. It always woke me up about 4-5 AM. My thigh was rock hard and in spasms. It really hurt! I would get up and limp around a few minutes and it would stop. It never happened during the day. I tried heat, ice, elevation, massage and nothing seemed to help. I just had to stand up and walk for a couple of minutes and it would quit. At about 10 days post-op it stopped and never returned. I don't know why that happened to me - just something wired.
You are going to be having lots of uncomfortable and new/different sensations in the first few weeks. Just try to remember that it will pass. Most people begin feeling a whole lot better at about 2-3 weeks. If you are doing a lot of exercises or PT you could be pushing too hard. If you are, back off and let it rest. Healing takes time and patience... Not always easy to accomplish but will help you in the long run.
Very best wishes, hope it resolves soon.
Pat in SC