Stomach cramps every night when go to bed

Patient: For the last few months every time I get in bed I have stomach cramps and my stomach feels really uncomfortable a bit like when you are heavily pregnant it’s stopping me from sleeping it is every single night, my periods have also become very light and last one to two days I’m 31 years old not sure if it’s connected any idea what this could be? Thank you

Symptoms: Stomach cramps

Doctor: