Superior Mesenteric Artery Syndrome

[Sootopolis]

I have always had some issues with nausea and cramps but not severe, and there was an episode of long-lasting nausea in high school (2016) after I had a case of the stomach flu and then food poisoning that was practically resolved after a short amount of time on domperidone and pantoprazole. For a while I was fine, until university when the nausea returned and I suddenly stopped feeling hungry and I couldn't attend classes. My issues with attending university classes came primarily after my first semester when I had lost 15 lbs from not eating much food (and then I lost even more weight in the second semester because I was too nauseous to eat). All my symptoms became constant, everyday things. In 2019 after my first year of uni I was diagnosed with gastroparesis via a GES. My condition has only degraded since then and I have lost some more weight although I'm just holding at around 103 lbs.

Recently I have learned about SMA syndrome and was wondering if I could have that, most cases I've read about seem a bit different to mine. I present with chronic nausea (worsened after food), occasional mild abdominal cramps, bloating, acid reflux, early satiety, pretty bad constipation (unresolved by prucalopride or linaclotide, with occasional success with miralax), lack of appetite, etc. I can only eat a very limited diet. Are all cases of SMAS more severe than this or could I potentially be dealing with it as well?