Hi Doctor, I have a new girlfriend who I dont see often. Whenever I spend time with her and do deep kissing, i feel sick within hours with itchy feelings all over my body, headache, body pains etc. This happened the first time, i thought it was sore throat, complaine to my GP, got prescribed an antibiotic which clears the itchy feelings. We kissed again 2 weeks later when we met up and I have the same sick and itchy feelings all over my body again. What can be the problem?