My husband started on Wellbutrin 3 weeks ago.....he started having intense queasy stomach 3 days ago. He states it feels like rats running around in my stomach . He is on ESBRIET for pulmonary fibrosis, lasix, pravastatin, Eloquis, and .diamox. Any ideas if the stomach problems come from these meds?, especially, Wellbutrin? Says it doesn t feel like GERD or heartburn. No blood in stool, no emesis. Thanks.