Having panic attacks and fainting spells 3 months after ayahuasca ceremony

Has anyone encountered this kind of symptoms? I did two ceremonies about 4 years ago privately in Mexico and felt wonderful. This last December a joined a group here in Los Angeles and I have been unwell since then. Kind of thought I was going crazy. Having serious panic attacks, unable to sleep at night, rapid heart beat. Looking for some answers or a place to go here to integrate.