I was diagnosed with sinusitis but I think I have a H Flu from my husband. I have been off work for a week and about to go back to work. When the medicine wears off I feel almost fine now, but once I take it, its too hard to get out of bed and the pain returns. Penicillin has never really worked for me but I have never been told I was allergic. Are my symptoms normal or should I consult my doctor?