So I'm heaving a rough time with lyme disease since 3 years (had to quit my job move home, bedridden most of the time etc)

Im still going to the gym (altho it's nearly impossible with fatigue and not gaining any muscle). So I see this guy that was in a uni course with me.

We had some small talk and then he was like are you having suicidal thoughts already bro?

I instantly replied like yeah for sure bro what about you? And laughed it off.

It sucks because of lyme disease I have dementia and feel like a 90 year old with 0 testosterone. What should I do next time I see him or something like this happens? Punch his face?

I don't want to leave people shitting on me like that when I'm sick but I'm also really fucked right now and don't want to get in legal trouble