Can I sue my ex wifes attorney.

I represented myself in an arrears child support case where my ex wife had an attorney. At the time I had applied for SSDI because I have severe lower back problems and was diagnosed with Menieres Disease. At a status hearing her attorney told me to contact hiim before the next status date and let him know if there was any progress, cause if there wasnt he didnt want to waste his time coming to court. I was having severe drop episodes of vertigo and had a scheduled surgery to have Endolymphatic shunt sac/decompression surgery the friday before the status hearing was the following mon. I explained to him that I was not supposed to be mobile for several days after the surgery and wanted to confirm he was rescheduling. I did not hear back and the day of the surgery my ex texted me and said they were not cancelling. That monday I had to use a cane and had bloody head dressing on to court. I do not remember being there and my wife had to assist me. I then had several days of falling