Hi Hannie.
Your Miso seems be ill alot. Your name and his/hers seemed familiar so I looked up the posts you created. Going as far back as July 2008 you had a fairly ill axie.
Going back at least a week - Miso was ill and it was recommended you fridge him/her for at least 2 weeks AND stop feeding minnows.
But in your most recent post you say Miso has been in the fridge for 2 days.
Miso can not get well if you don't follow the advice here. Miso needs proper food. Minnows are not a complete diet and not even what an axolotl would eat consistently in the wild. Minnows are not part of a complete diet for an axolotl either.
IF Miso is a year old then bloodworms are not enough - earthworms and pellets are the best nutritional choices. Don't get me wrong. I feed my full grown axies bloodworms, home bred guppies, & blackworms in addition to their regular diet.
Why are you not fridging Miso as recommended? Forum members are also asking for pictures. Those would be hugely helpful in determining what exactly is wrong with your axolotl.
If I misunderstood any of the posts I'm sorry. We all want to help but we need more from you.
My heart goes out to you & Miso.