I was not allergic to sun during TX (went to the beach with no problems) but suddenly developed another allergy that caused sun
sensitivity at EOT. It went away about 2 weeks after I stopped the med that was causing the
sun sensitivity.
Just do a test: Go outside in the midday sun for 15 minutes completely covered except for one place, say the top of your foot, or with one sleeve pulled up to the elbow. If it reddens, you're sun allergic, if it doesn't you're not.