I began rapidly losing weight about a year ago ans

Patient: I began rapidly losing weight about a year ago ans at the same time had a three month long menstrual cycle. I lost about a hundred pounds in eight months and now I struggle to keep weight on. I was sluggish at first and attributed it to the rapid weight loss. I feel fine now but I know there has to be an underlying issue because I have been heavy my whole life. I know I need to see a doctor but I’m terrified of the outcome.

Doctor: