Day 2 and feeling like crud.....

OMGosh. How long does this last?????! Right now I'm very thankful that it was posted what to expect, because I'm there!
Went to bed feeling great last night. This morning was good....this afternoon the tongue coated, my teeth feel furry and are sticking (um, gross), my head hurts, everything smells good--looks good to eat. On top of it I'm feeling a wee bit nauseated.
How long????? Please tell me this is almost over! I'd like to go to bed now, or a bath might do it also.
Sorry for being so pathetic. I kind of feel like if I tell this to my family they won't 'get' why this part is important. How long????
C