HIV Antibody test are conclusive by 12 weeks
Welcome to HCM.
White tongue with bumps on the back and sides, head ache are not necessarily be due to HIV manifestation. It could be due some other oral infection or an aphthous ulcer due to reasons other than HIV.
The reliability of negative HIV test
by 7 weeks depends upon the type of test done for you. Regular antibody Rapid tests and ELISA
are more conclusive by 12 weeks.
You had not mentioned anything about your sexual activities and whether you are married or not? Safe sex
is always better.
Wish you a speedy recovery.