It's clearly the UV and allergy against sun light. I only get it in summer when I expose myself too much to the light. My brother gets it, too. Skin sensitivity is something the whole family lives with. Guess, you and me might stem from a bat family. LOL.
Speaking of sun: today is a lovely day and we will visit again the STAMP Festival, as every year. Unfortunately there are less artists and more consumption.
Kisses!
Erika
Have fun, friend :)