###Human: White tongue and blisters in the throat three months after sex. Is it serious? ###Assistant: Hello. First of all, you have to acknowledge that your STD tests and HIV OraQuick are negative so that there is nothing serious. You are 26 and if the whitish lesions were not there prior to sex then we can rule out cancer too. You are not in a high-risk age and cancerous lesion does not appear all of sudden. HIV has been ruled out already. The test came negative and your partner is safe too. The enlarged lymph nodes could occur even in candida infection too. Rest of the symptoms you have could be explained by active febrile illness most likely viral. You should get your CBC or complete hemogram done again. This will help in finding out infection. Continue to take anti inflammatory drugs for symptomatic relief. Tingling could be partially due to anxiety.