So, someone provided you a link to a psychological condition, but I think what you're looking for is the "let down effect". https://www.webmd.com/men/features/

So, someone provided you a link to a psychological condition, but I think what you're looking for is the "let down effect". https://www.webmd.com/men/features/suffering-from-let-down-effect https://www.webmd.com/men/features/suffering-from-let-down-e... Basically, your body during stressful times can raise its immune response, but there's a price to be payed later. I have had the same problem of getting sick for most of my breaks.