I want to know is my case eligible for a malpractice lawsuit.

I was experiencing tingling numbness in myleft toe foot.I went to the E.R I was told it was gout to take pain medicine and keep elevated. The pain didn't stop i went go my primary care doctor who then sent me to a podiatrist. My toe was turning black as i made my visits to see the Podiatrist. She told me to put aloe on it and gave me a lidocaine shot in the foot. The toes continued to tun black and sores.I then went back to the hospital for my medical record for the E.R visit. On my record it states calcification of the left foot and ankle. My eventually had to be amputated which caused me alot of pain and suffering, I had to learn to walk again. And i was placed on anti depressant s because of this. I feel as if the hospital or podiatrist would have done more test the toes could have been saved. I returned to the hospital that time they admitted me and did test and unblocked my blood vessels and saved the rest of my left foot. The toes where removed because gangrene set .