What are these itchy red bumps?

It started as hives at first and then developed into reddish bumps like the ones in the picture. I have them on my neck, chest, back, stomach, arms, butt, and a few on my legs. Their dry and itchy. It’s been 3 weeks now and they itch every day, especially at night while I’m sleeping. Could these be stress hives? I’ve been feeling very stressed at work.