Painful trapped gas after c section!?

Yasmin

I'm 8 days post c section and I have trapped gas around the scar site. When I pee I can't release fully as if I do I can feel that acute gas pain. I'm also constipated and not sure if this is related or making pain worse. Doctor put me on iron pills for anemia which probably contributed to constipation so I stopped taking them last night but so far still can't go to the loo. Does anyone know if or how the gas pains will go away?