Sometimes I feel sexually aroused, but I rarely become sexually aroused. It's more of a feeling of being hyper-aware of my crotch area.
Whenever I'm wearing diapers, I feel like a silly little boy. I feel cute, I feel happy. My anxiety goes away, and I relax.
When they are dry, I feel safe and secure and comfortable. When they are wet, I feel relaxed and at ease and safe and secure and comfortable. The only thing that breaks into that feeling is needing to change so they don't leak.
I only mess my diaper when I have to treat my chronic constipation with colonic irrigation hydrotherapy , and after that happens I feel like I need to get cleaned up and shower ASAP and get into a clean diaper cause personally I think poo is icky
Luckily, taking fiber every day keeps it so I don't have to do that very often as it's very uncomfortable, highly unpleasant and sometimes rather painful.
Sleeping in a diaper has really helped me get restful sleep. Ever since I started wearing almost 24-7, my sleep has improved dramatically. I don't toss and turn, and I don't wake up in the middle of the night to run to the bathroom. When I wake up with a wet diaper, I just smile. Waking up in a cold wet bed, having to strip the bed and sleep on a towerl and cry myself to sleep is one of my scars from childhood. Wetting the bed didn't START my desire to wear diapers, but not getting them when you need them was certainly a permanent blow to my psyche. You can never remove a scar, on your mind or on your skin, but you can sooth it. I've haven't needed them during the day since I was potty trained before I was two, but I wear them during the day anyway. Since I don't have any friends or significant others to hide them from, I can just wear them day and night and be happy.
That's why to me, diapers are comfort.