@DrasticDreamer What are the negatives of sensory deprivation that would make you reluctant to try it?
About the swimming. Water temperature does matter. In any pool if you are comfortable in the water you will not feel the water if you are very still. It’s weird. You don’t have to be completely submerged. It happens to me if I am up to my neck in water and I have my head out to breath.
If you check out a few indoor pool places 84” is a good pool temp usually to not be shocked when getting in the water. Some pools are kept at 82” which still is ok, but usually cold at first and might be too cold for your goal. Once in a while pools are maintained at 86 degrees. Usually in places that are for older people. You can ask the front desk or the people who give you a tour what temp they maintain the pool at.
I don’t know your exact injuries. Most of the time the water is helpful. Once in a while movement in the water aggravates an injury. Joint pain is usually helped. Joint pain from injuries like overextending might feel bad in the water, because the water causes a drag. Switching movements quickly from side to side might aggravate it. It will give you weightlessness if you just want to be in the water without worry of swimming or exercising.
I wear a swim shirt, it’s called a rash guard, to stay warm in the water. It’s basically made from bathing suit material.
Do you live in a sunny place? I feel like a few weeks in the sun would be helpful to you. Not just the vitamin D, but a place to rest and remove some stress. I guess no matter where you live the weather just moved out of summer and you would know if it’s helpful. That is if you were able to rest and if you actually spent some time in the sun. Sun has some negatives too of course.