<s>[INST] Hi, I am a male who had anal sex wth another man after having some great sex . Later the next morning i began to sweat and almost have flu systoms. Was that the body fighting the cum inside my rectum? I did not use a comdom wanted the incredable expericence of him cuming inside me. [/INST] DearWe understand your concernsI went through your details. You are going too far. Anal opening is already filled with micro organisms and body is already on the full defense state there. Therefore, your doubt is uncalled for. There are no evidence of contracting flu after having anal sex. I think, flu could be due to climatic conditions or strenuous sex and sweating. If you require more of my help in this aspect, please use this URL.  sure that you include every minute details possible. Hope this answers your query. Available for further clarifications.Good luck. </s>