During sex I sometimes feel the need to pee. It’s like my mind is playing tricks on me because it never is the need to pee. It’s almost like I’m afraid to fully relax just incase . Sorry for TMI. Any advice would be appreciated!

Sex can sometimes put pressure on your bladder so that's normal.

could it not be the “squirt feeling” a lot of people describe the feeling of going to squirt like this

Sounds like you are close to squirting