Hello,

I live in Montenegro so unfortunately we here don't have a single reptile vet - you can checks if you wish... So money is not a problem here, nor laziness, but a real need for any help or suggestions.

I have a 2 year old male sinaloan milksnake. He eats like crazy, moves around, poops great (5 days after a meal on point), and I feed every 15-20 days a mouse (not full grown). He is around 90 cm now. Otherwise with no issues.
I noticed about 6 months ago two small lumps on either side of the body, just before cloaca, so almost both siders of cloacal opening. They are exactly the same size and position, soft to the touch, do not move when pressed, they just squish down. Snake does not react like they are painful. No discoloration or similar, and I am sure it is not impaction or poop, because snake does regular poops after every meals that are perfect. I did some soaks to be sure.

I supposed he was developing fatty lumps so I decreased the meal size. But the lumps are growing. Just now I noticed two more very small lumps on one side, about 3-4 cm towards the body, also on the side of the body - same line as these lumps. And I freaked...
I keep everything very clean, I feed frozen and have been since I got him as a hatchling. I keep him on aspen, and he has a humid hide. He uses all parts of his enclosure. I am providing some pictures below.
Any advice is welcomed.
Thank you.

Him coiled up and visible lumps on tail:
https://pasteboard.co/JZiQUnH.jpg

View from above, two additional lumps are barely visible but look between two two last rings just before the lumps near cloaca.
They are about a size of a grain right now. Hard to see but there. He might smacked himself somewhere also, because he burrows under his caves:
https://pasteboard.co/JZiRygd.jpg

Another view of lumps near tail and at one time two additional lumps on the right side of the picture - 2 last rings before the tail:
https://pasteboard.co/JZiSwMx.jpg
https://pasteboard.co/JZiTzO5.jpg
https://pasteboard.co/JZiTO9l.jpg


And his enclosure:
https://pasteboard.co/JZiU0R4.jpg

Thank you for any help or suggestions.