itchy skin and red bumps

i think the itchiness started friday/saturday and i don’t think it’s my body wash because i haven’t changed it and it’s never been a problem. i also lotion my body after the shower every single time. now i have little red bumps but i don’t know if they’re there because i was scratching so much or if they’re the reasoning for the itchiness. i have these bumps now on my stomach, a little on my chest, and my lower back/butt. i also haven’t been sleeping anywhere really differently so i don’t expect bed bugs. it may just be dry skin and scratching it caused the irritation thus the red bumps, but i thought i’d ask.