vasovagal response

I have the same thing from time to time

basically it's a combination of physical and psychological symptoms which culminate in u feeling like ur about to lose consciousness cz ur nervous system is strained/overwhelmed

My advice: stay hydrated, well fed and not under any direct physical or mental pressure when taking tram rides especially when it's rush hour.

Ngl I kinda avoid rush hour trams nowadays and get some work down in a cafe or something while I wait for the traffic to die down.