Is hypersensitivity of scalp a sign of HIV?
No it is not the symptom of HIV or any other STD.
Welcome to HCM.
The hypersensitivity of scalp and skin is not the symptom of HIV or any other STD. It is mostly due to some skin problem for which you can consult any dermatologist, go for some investigations to isolate the cause and take treatment as per advice.
Don't worry and stop thinking about HIV.