I have a pinched nerve in my hip and i have the feeling that i need to poo but i can't is this related maybe the inflammation of the hip is affecting it im in a lot of pain and this just adds discomfort i can't sleep at all what can i do about this?

You just have to take ibuprofen or motrin OTC 2-3 tablets every 6 hours as needed with some foods for a day or two. In general, pinched nerve or joint pain should ease up after a couple days.

Not clear if you have a "pinched" nerve, or joint problem instead, and this needs to be sorted out. Whether this is meralgia paresthetica, sacroiliac dysfunction, trochanteric bursitis, etc., you need a direct exam to arrive at appropriate diagnosis, which will lead to direct therapy.