Sensitive skin issues.

[Swanny21]

I am new to straight razor shaving. Only shaved maybe 7 or eight times and have been getting reactions badly about 5 mins after finishing and applying lotion. I have always had sensitive skin but am not allergic to anything. My shaves feel like they are getting closer and closer and have had little to no discomfort WHILE shaving but develop BAD red reactions after. Im not allergic to the aftershave(been using it for a while) or the shave soap(applied it to my underarms with the brush to see). SO my question is, has anyone ever had, or heard of, anyone having TOO sensitive of skin to shave with a straight razor? Here is what i am experiencing. Any help/suggestions are apprectiated, Thanks K.S.