Ok so, for now at least, I'm not ready to live as a vampire. I cured my porphyric hemophilia with a cure disease potion, but my endurance is still at 0 and my hp is still capped at just 34. Do I need to sleep or something?

try restore endurance

Worked only a little, raised my endurance to 30, now it wont go above 30 even with more restore endurance stuff, and it's still lower than it used to be.

That shouldn't have taken it down to zero. Pull up your spell menu and select the current effect tab, on the far right. It should any neg effects at the top of that list.

Try eating some Mandrake Root, or pray at a chapel altar.

Well, Chapel is out since I'm an evil thief, lol. Sure the Thieves Guild is supposed to be be "good" but I'm going straight to Dark Brotherhood after I finish Thieves Guild. The altars reject me. Any place for someone evil to pray?

Only if you have the Vile Lair DLC.

Did you check your current effects and eat the root?

EDIT : Just a thought...Is your Endurance still red?

Check your items as well. You might be wearing something that drains your endurance.

I have ALL the DLC Im very proud to say I'm not wearing any items that drain. It all started after I cured myself of the disease to become a vampire. It was strange, during my fight with the vampire I got the disease and it said my endurance was damaged, and was knocked all the way to zero. I've managed to raise it up to 30 but it's still red and lower than my endurance used to be. I've taken potions I would think would fixed damaged endurance but it wont go above 30 and it's still red. I just don't know. . I may pray in Vile Lair, see if that fixes anything...

I'm still curious about what your current effects lists as the damaging effect...

I'm not sure off the top of my head, lol. Done playing for the night. I'll check it all out later tomorrow or so.