I think what I'm dealing with is teething discomfort but DD never really had problems with the rest of her teeth so I'm a little taken aback. I figured molars would be bad but I wasn't counting on THIS bad.
I can see the edges of three molars and I'm sure the fourth can't be far behind. Aside from the normal drooling, chewing on fingers, and runny nose, DD's mood over the past several days has been atrocious. I can't get her to play for more than a few minutes at a time before she starts whining and fussing. She dissolves into rage and hysterics if she can't get a block to fit in the shape sorter within .5 seconds. She wants to be picked up and carried around constantly (and I can't just hold her on the couch, she wants me to walk around). She has flashes of pleasantness every once in a while, but it turns on a dime. And the weird thing is, the last two evenings she has been totally pleasant and fine for the hour or so before bed. The reprieve is nice but I don't understand what's different about the evening?
How did cutting molars go for you? And how long before it was over?
Re: How did your toddler act while cutting molars?
That being said, the molars did really give my DD a hard time, but not in the same way you're describing your DD. Mine was very clingy, tired, had a low-grade fever, and crying or on the verge of tears (but not throwing a fit). She fell asleep on the couch cuddled up with me which is so far from her normal behavior (She's never been a cuddler and can't sleep anywhere but her crib or occasionally the car seat). We used Hyland's Teething Tablets and Tylenol or Ibuprofen to help her out. GL!
Our son is 15 mos and just had 3 molars all come in at once (plus another bottom tooth). We had a really rough time. He didn't have any problem with his other teeth, but the molars were aweful. He was fussy all of the time, wanted to be held (and walked...no sitting and holding allowed), didn't want to eat anything, and threw some wicked tantrums. The worst was a night when he woke up almost every hour screaming for about 3 days right before they broke through. Once his teeth broke the surface though, he went back to being our pleasant little guy. All in all, we had about a week of living with Sir Cranksalot before he got back to his routine.
Hang in there!
Our DD is 20 months it has been terrible for 2 months now. She has basically given up eating
for awhile she would eat watermelon and yogurt + some snacks, now forget it maybe some yogurt, snack, milk I'm going crazy over here and feel like a terrible mom. I don't remember any of this with DS.. Good luck I'm going with every child is different we are going on 2 months of a cranky pained little girl 
Good Luck
F-ing insane lol. My ds2 is cutting molars right now and he has always been the most pleasant baby I've ever met in my life and now he cries constantly if I'm not holding him. Thank got for nursing, that soothes him. I mean he is a completely different baby right now. He loses his mind if I put orajel on him and he runs away and shakes his head if I come near him with Tylenol. Now on a bright note, ds1 did the same exact thing BUT he also got a new brother and a cold when he was cutting molars, now that my friends was hell. He was a miserable beast. He wanted to be held all day, but clearly I couldn't and it sucked.
So my advice, just hold your little one and thank God you don't have a brand new baby in the house at this point in time. (unless of course you do, then heaven help you) It'll pass.