My stomach makes loud noises in specific positions, i hardly defecate, just once in 4 days.

Constipation: Constipation is a very common problem in many adults. Normally one should have bowel movement once a day or at most once every other day. You should take more fiber in your diet and perhaps use pro-biotics as well. Regular exercise such as walking should help along with bulk forming agents such as metamucil. Please see a GI specialist. Good luck.