A plethora of factors go into putting a number on a case, so have a local San Antonio personal injury lawyer investigate and evaluate. Avvo has a "find a lawyer" tool to locate a top-rated Avvo lawyer with a low contingency fee. Good luck.
I can't give you advice with respect to the overarching conspiracy as that's outside my baliwick, but I assume that you are asking primarily whether you have a medical malpractice claim. The medical records would need to be ordered by a medical malpractice lawyer and reviewed by an expert to ascertain whether or not there was a breach of the standard of care. Thus, search Avvo's "find a lawyer" for a medical malpractice lawyer in your city or state, and call for a free consultation.