the reasons may be numerous and of course very complex and highly-individualized. this is not something that can be blindly solved over the internet. your first step is to make sure there is not something medically/physically wrong that can account for your displeasure. then you may need to see a psychologist -- someone skilled in sexual dsyfunction -- to help you sort out the possible reasons and solution to solve this very distressing dilemma.
why does sex not feel good to me? . what is wrong with me. whenever i have sex it does not feel good but it does not hurt/feel bad. it literally feels like nothing no pleasure at all. i feel him there but no pleasure with him being inside me. of course i have tried different positions and have had different partners. nothing seems to give me pleasure.