i have had this syndrome in the past. there were triggers that set it off...real or unaware fears. my T suggested i think it through. hard to do but it works. like what is causing me to react this way? what is concerning me? can i do anything to resolve this? talking about those things help too cause the more i talk about it it calms me down. i've had the hyperventilation so bad that one side of my body went numb. medics had to put me on oxygen to make it go away. that drove me quickly to my T.