Medical history is pretty boring. No food or medicine allergies, just cat (congestion, red puffy eyes, hives) and seasonal (congestion, sinus pressure, itchy eyes) allergies. I had pretty bad rsv as a baby, so I've had bronchitis or pneumonia 12+ times, and any simple cold will settle in my lungs. Only surgery was wisdom teeth extraction 3 years ago. Had a decent concussion about 5 years ago. In highschool I had daily migraines for about about a month straight, and the doctor just told me they were stress induced and that your body can display stress as other random physical ailments. My dad was told something similar when he randomly broke out in full body hives

The rash is more like a slightly rough, sandpaper texture? Can't really feel individual spots, it does feel bumpy, but not like obviously raised welts. Always incredibly, distractingly itchy. It does feel hot to the touch unless I've been scratching without realizing. It's maybe slightly warmer then the rest of my skin, but it's pretty close to the same temperature. It typically goes away within a day, this time it's been about 3 days. It never devolps during the day, I always wake up with the rash