Sometimes if I'm solving a leetcode problem and I'm at it for 40 minutes........I start to feel physically tired and get a strange sensation of chills over my body. Like the chills you get when you're stressed out and feel like pulling your hair (but not actually pulling it, because the stress is not that bad yet).

Anyone else get this? It mostly happens with stuff like low level data structure manipulation. Not as much with high level stuff like figuring out how a software should work.

Stuff like this makes me wonder if I'm really cut out to be a software dev. Cause for the hardcore coders, it always seems like they're relaxed. They write code in the same way someone would read an interesting novel. No stress, ,just relaxation.