For my level of education in human health (I'm a patient poking the internet for solutions to my own health problems) my understanding of your symptoms is:
extreme hunger/never feeling full
Nutrient malabsorption probably caused by NSAIDs and "azoles". I have read a number of articles on sites of famous integrative health practitioners backed by published research and known metabolism pathways stating that these medications interfere with liver functions. The lowering of the stomach acidity by the azoles hinders the absorption of several vitamins and minerals (esp. B12).
very painful right shoulder/arm
I have had it since 2011 when I had to take heparin and warfarin.
My take on it is that this medication caused me severe leaky gut and consequent inflammation, plus disrupted my gut flora.
I just got rid of it a couple of weeks ago by addressing my gut flora with prebiotics and probiotics.
A few weeks ago my husband took an "azole" for parasites and all of a sudden was complaining from this right shoulder pain. He suffers from many pains, took NSAIDs for several year until he got a drug-induced hepatitis from them and had to stop (then he started taking my supplements -magnesium, MB12, etc- and is feeling great relief), but it was a 1st time for the right shoulder.
For me it is a confirmation that medication damages the gut flora and the gut lining, and also compromises the liver.
Now that I found out that my husband primary pains (lower back, ulnar nerve) are inflammation from his poor capacity of break neurotransmitters down (2x +/+COMT) and to recycle vitamin B12, we have been managing the pain using vitamins rather than drugs. My hope is to fix the pain in its source.