Dear Welcomem to HCM We understand your concerns I went through your details. I suggest you not to worry much. Sexually Transmitted Diseases do have its ownn symptoms which are mostly external and in some cases internal. Tingling of penis is rarely any symptom of STDs. The tingling you are feeling because you are anxious about the unprotected sexual activity you could not digest. Aniety about unnecessary health worth worries could lead to somato form disorder of hypochondriasis. Therefore, please be saffe and sure that you do not indulge in such activities again. You might need sexological counseling. Visit www.psychocure.webs.com. Hope this answers your query. Available for further clarifications. Good luck.