Hi and welcome to the CHIARI forum.
I am not a medical professional and the MRI the one to the far right is too blurry for me to comment,,,,and I am not experienced to comment on the other views you have,,
Chiari and SB are related conditions...it is possible you have CHIARI and it is possible it is something due to the EDS,,CHIARI is a congenital condition as well as EDS so it's possible.
Having the right Dr is key, you need someone that knows how these conditions are related and how treating one can affect another.
Once you get the new scans, do put them us as I am hoping they are clearer than the ones you posted...the blurry view on the right is the only one I am familiar with to notice Chiari or a few other issues...but the one you have I can't really see anything.
May I ask what area you live in? Maybe I can offer names of Drs to check out?