Tips for Dealing with Sensory Nightmares and Body Awareness Issues

Okay I know little about this so take this with a grain of salt. The bathroom thing kinda sounds like neurogenic bladder. That can be very serious. Again I am just offering up an answer because I didn't know that was thing until my partner told me a little bit about it. Also, I feel the thirsty and hungry thing. I have both Autism and ADHD which leads to a lot.

I’ve had that issue with the bathroom thing my whole life. Only for bowel movements, though, not bladder. I only shit once every 2 weeks until I was 13.

The not being able to tell when you need to do bodily functions is called poor interoception. I have it. The only ways i get around it are with the help of other people, eating food i like even if i dont feel hungry (i just want to eat for the taste/dopamine- and then turns out i was hungry), with peeing i tell myself to go every time i finish drinking my bottle of water. As im getting up to go and refill it, i remind myself that i need to go pee while im up. I think other methods that could help is setting reminders and alarms :)

I have these same struggles. I have no advice really.

For the skin feels, usually deep pressure helps me. Tight-fitting sleeves and socks are good if you don't have a weighted blanket or a person to bear-hug you. For awareness of needs, I use a daily schedule app and block in specific times to go to the bathroom, drink water, ect. Even if I don't think I need to, since it's part of the schedule I do it anyway and that's pretty much eliminated the need to have to try to be aware of my needs. I also schedule in quiet time, stim time, hobby time, and any other things I find myself wishing I had time for. My approach is definitely very rigid but I'm sure you could adapt it to suit your lifestyle if you felt inclined!

I wear compression sleeves when I'm hyper aware of my skin on my arms.

This is gonna sound weird but for the bathroom thing I've seen people just wear adult diapers. I know it may not be the right option for everybody but I don't think there should be any shame in using them if you want to either