I have Ulcerative Colitis, and it does make you loose weight without proper treatment.

Medications for your IBS treatment can help with flares and symptoms. BTW, Remicade and Mesalamine (aka Lialda and other name brands) (at max dose) is what got me into remission for Ulcerative Colitis.

I will tell you that when it came to my medication for Fibromyalgia, Lyrica packed back on the weight and then some. I call my gut the Lyrica belly.

The others are right though. Your GI can posdibly help identify the cause of your weight loss.

Investigate your diet as well. Maybe you are lacking healthy fat. Protein is not enough.

Make sure it’s one of the first things you do when this stay at home gets lifted

I would make an appointment with a gastro to rules out any internal problems. I would start with a colonoscopy

Some meds can cause weight loss. Unintentional weight loss is cause for concern and you should see your doctor as soon as you can to find out the cause. I am on the slim side and have trouble with nausea and loss of appetite due to severe fibro pain at times. I see my doctor every 6 months. I have a cocktail of meds that I take on an as needed basis so as to avoid side effects. My weight is stable, however. Hope this helps..

medication can cause this too--most of my husband's meds have weight loss as a side effect. Mine caused weight gain until I changed them and I lost 40 pounds in a month.