For HIV -- The granting of Class 1 medical certification is usually a case by case basis, this is the case in Australia where the more medical information you provide for consideration the better. Generally speaking, a low viral count, CD4 above 200 and little or no symptoms. After a few years off flying, I am now wanting to complete my CPL/ATPL qualifications -- I'll be happy to share what my experiences are and professional opinions from aero-medical doctors. I suspect looking at legislation I may be approved Class 1 medical restriction, but I won't know until I bite the bullet and do it. As a pilot, one should anticipate and go further and in addition provide neuro-psych tests also (just ask your doctor for a referral). The more good news the better.
By the way, don't wait; the physics and maths isn't too bad - there was a housewife in our study group and if she can pass and acquire her PPL so can you! It's a logical progession from PPL to CPL and then onto ATPL.