I have been getting a sore throat, nausea and dizzy spells accompanied by a two second blackout every time. This started happening one month ago. I have been diagnosed with PTSD and I have had a TBI. Is it a possibility that my blackouts are related to do this? If so, what do you recommend I do to alleviate the blackouts?

You need to be seen by a doctor...we can't diagnose you and it's likely that there are no home remedies for this.