There are illnesses that have no cheerful side to them. Take social anxiety, for example. Or phobias. Or diabetes. There are illnesses that have a cheerful side to them. Migraines are awful, but are correlated with high sexual activity. So something fun. Bipolar, too, has a fun component to it, but statistically (and you lucked out - you are not part of that statistic) bp spend more time depressed than manic.

I have dated a guy whose diagnosis is still unclear to me - bp or schizophrenic. Most likely bp. When I left him (stupidly) for my would be first H, he attempted suicide but was saved. He was a genius composer. Many years later, when I was no longer in touch with him and already living in another country, he did commit suicide. He was not properly helped. But he sure had a beautiful mind. Wrote classical music.

I then encountered schizophrenics and schizoaffectives on a locked psychiatric unit. Terrible human suffering. One of them had to be there all the time - her family could not deal with her at home. Another, a Ukrainian physicist from Stanford Physics department, tried to talk to me about his delusions about Jesus Christ. Very sad. He was lucky - he had a very caring sister who visited daily. I do not know whether he was able to finish his PhD.

You are clearly unfamiliar with the human suffering part of mi. You drew a lucky card - enjoy and stay away from generalizations. Statistically, it is a very very lucky card (low probability event).