Help! Really worried about my snake?

Did she go into hibernation for some reason?  Snakes WILL do that in winter months if they don't have a heat rock.

Reptiles do eat less in winter; they sense the shorter days, even if it is warm in the house and there is artificial light in the room.  But it's nearly Spring and she should eat.

Also I am really concerned with the clicking, which sounds like a respiratory problem, and the stool with mucus and blood.  I would get her to a vet.  

omg please take her to the vet.. it's normal for hognoses to sometimes have hunger strikes but the fact that her poop is green + has blood + is runny is concerning, so please take her 🙂

ppl say vet, i say bandaid fix, as probs always start at home.  hows the "cage"? water? right bedding? hidey holes? from my experience in regards to giving my snake a good life, those are always the answers i get...  if its not happy, it wont eat and so on...  personally i have aspen bedding, threw a bunch of cat grass seeds in there, so now its like a damn lawn, a few boxes, 2 hidey holes from the pet store, happy as ever.  of course a log or whatever to rub his "***" against to get the skin off.  otherwise yeah, my snakes happy.  i handle him often, zero issues, unless im f*in drunk and cooking, shoot i got bit, well thats cause my dumb *** was cooking and my snake smelled food and said, well an ear "looks" good lol.  oops!  anyway, start at home base, cat grass is cheap, seeds grow super fast and tall, problems continue, vet! i say give it a week after u plant the seeds.  literally 2-3 days youll see grass, a week, ugh, 7-10' tall, its nuts! but my snake loves it!

Is she moving. I don’t know where you live but if you live in a state that has cold winter, it could be brumation. You did mention that she did the same thing around this time last year. 

Try warming up her tank or putting her on a heat pad and see if her activity increases. Be careful with heat pads. Make sure it doesn’t cook her. 

Sounds like she’s getting a respiratory infection 

Up the temps some that can help but You may need a vet visit 

i would take her to the vet