u/Inevitable-Gap1174

my axolotl is 2 years old, I’ve tested the water and the levels are all normal, I do regular water changes but I’m concerned about her gills - there seems to be alot of blood vessel loops sticking out and I haven’t been able to find much online about how to help her - if anyone can help please! (a small lump on her side has appeared too and I’m not sure if thats something to be concerned about?)