Psychosomatic symptoms don't quite work this way. For example sometimes you feel stressed at work and get a tummyache--that tummyache is real, linked to your stress response, and technically the stress is in your head. The person didn't believe they had IBS and suddenly develops a tummyache, they were stressed and had a physical response.
2planetvibes t1_j5r8xsc wrote
Reply to comment by [deleted] in TIL about medically unexplained symptoms, almost 1/4 of all people who visit a GP in the UK have phsyical conditions that cannot be explained by gorge_orwoll
Psychosomatic symptoms don't quite work this way. For example sometimes you feel stressed at work and get a tummyache--that tummyache is real, linked to your stress response, and technically the stress is in your head. The person didn't believe they had IBS and suddenly develops a tummyache, they were stressed and had a physical response.