Sorry to hear about your troubles. My first thought was a missed covid infection. You may have had it without any particular symptoms, but it can still (rarely) lead to systemic thrombosis in otherwise healthy people. If this ends up being the case, the good news is that it will likely get better. Heres an example case report: https://casereports.bmj.com/content/14/1/e241027
Clots, cysts, and no diagnosis +7m on ...27yo female, 84kg 5ft9, presents w/ multiple clots in stomach - splenic vein thrombosis, mesenteric vein thrombosis, portal vein thrombosis, for main concern - in addition to other clots present in stomach (8 total). Cysts in spleen and liver, constant upper right flank pain w/ sickness and diarrhea and stomach distension. Right shoulder/neck pain. Constant tonsillitis issue, constant fatigue periods followed by unable to sleep for extended periods of time too.Docs determined clots as idiopathic, now on enoxaparin injections 150ml and codeine for pain management. Been under investigation since Dec-21, w/ no ACTUAL diagnosis. Clots were not caused by a trauma.Had CT, MRI, colonoscopy/endoscopy. No IBS. Cirrhosis. No gallstones or issues with gallbladder. Seen a haematologist full thrombosis panel completed: all genetic, autoimmune, deficiencies, all negative in tests. Jak2/PNH/anticardiolipin/beta2 glycoprotein all negative. Thought hyatid disease for the clots given in spleen/liver, however, negative. Under gastroenterology, rheumatology issues ruled out.Abnormal perfusion areas in liver, calcified splenic cysts appear to be long standing but benign in recent MRI. Fatty deposits for 'cysts' in liver, but appear benign again.Recommended weight loss to aid with symptoms and also reduced fats in diet considerably (got an air fryer), lost 10kg since but upper right quadrant pain seems to be getting worse again and sickness/diarrhea.Getting frustrated with lack of diagnosis as to why clots formed, cysts formed, and what's actually happening to me.No previous medical/family history of clots or cysts. Mom has had 3 miscarriages, Dad has cardiovascular issues. Both grandmother's had cancer - bowel and throat.Awaiting elastography of liver to measure scarring so far.Anything else I should be requesting to aid in a diagnosis? Any thoughts on a diagnosis?