It's natural to feel nervouse about things like this. I am 28 and am going through a lot of what you are going through now, except the yeast infection, which antibotics can cause. back in Jan I had a pap which came back ASCUS I just had my follow up last week. I Seriously recomend you call your doctor and ask what excatly your pap came back as. for example mine came back ASCUS and my HPV report was inconclusive. My doctor told me that if my HPV report came back neg, then he would have just had me come back in a year. Since my HPV report came back lack of spec. he had me do a follow up, if my HPV report comes back postive (or for some reason they find something else) I will go in for a colposcopy, becaue as you know probably from your reading HPV can cause Cervical cancer, atleast certain strains.
Maybe your HPV report came back postive, which can mean a number of things not all seriouse, your doctor is now doing a colposcopy.
The abnormal bleeding, my doctor told me, could be just hormons or something seriouse, but may not even be related to your pap.
That is why it is so important to find out the reading of your pap, call today, it may make you feel better to know.
On another note even if you have something wrong, caught early Cervical cancer can be treated and cured. From what I read Cervical Cancer can take many years to progress my doc told me like 5-10 years. Even if you have something wrong it may only be pre-cancer cells which can be fixed with leep and the like. Call today if you can, find out excatly what your report said, I did and it made me feel a bit better know excatly what is going on.
Good luck and remember even if something is wrong you probably caught it in enough time to get it corrected.