What is all over my body? Help meeeeee!!!

It showed up about 2-3 weeks ago. It itches SO bad. I have never had this before. This picture is of it on my thigh, but it is also all over my stomach, under my arms and under my boobs, got a few bumps on my neck.... It is so much worse on my stomach and under my right arm...

No, it isn't bed bugs.

Idk if its eczema or what. And how do I get it to go away?

WHAT COULD IT BE 😭😭😭😭 I FEEL SO UGLY AND HIDEOUS 😭😭

Also: it is sore when I itch it. It isnt the worst pain ever but its so annoying.....

I do suffer from dry skin. Idk if this is part of it or what.