Wait until 28 days has elapsed so you can get a conclusive test.. It is not that far off, so try to relax as much as possible.
You don't need his test results if yours is negative, but if he had no other sex in the last month you should insist he get tested now and show you the results for immediate peace of mind - pay him for it if necessary. In all events however, it doesn't seem that you can safely trust him though, so you should test yourself at 28.
Studying symptoms are just creating useless baggage for your worried mind, since the only way to know if you have HIV is from a test, It is natural to try to find clues to your future, but you have to accept that is impossible and wait for 28.
You can get those "symptoms" from other diseases or viruses, plus in your frightened state you can imagine things are new that were always there before. I never pay attention to any "symptoms" people mentionon this board because of those factors.