Good Morning, @sg3, and Welcome to Connect! Please accept my congratulations on your recovery and your almost 4 month check-up for your liver transplant.
My transplant was 14 years ago, and I had my share of questions, too, especially in the beginning months and years. If you are running a fever, it could be an infection that needs to be treated right away with antibiotics. Your ER doctor can check with your transplant Hospital Liver department about an appropriate medication.
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@sg3, I don't recall having the symptoms that you are experiencing. It could be a simple case of constipation, a reaction to being overly active or something more serious. My problematic re-occurring symptoms were an elevated temperature with shivering which came on suddenly. I don't know why these things always act up on the weekend, bit that is what I have experienced, and I have made many late night and early weekend morning trips to my local ER where I am always treated like a VIP when I say that I am a transplant recipient.
If you are uncomfortable with waiting until your appointment on Wednesday, why don't you give them a call tomorrow? They might want to see you earlier or suggest a possible solution to make you comfortable in the meantime.

Someday, after your appointment, I want to hear about the guitars that are in the background!