1) Have you been ill prior to these episodes?
2) Do you have a history of taking steroids - oral, like prednisone - or inhaled steroids for asthma - or topical steroids? If so, have these been taken recently preceding an attack?
3) Do you have hyperpigmentation? - excessive darkening of sun-exposed areas of skin, knuckles, knees, elbows, and scars, inside the mouth and the gums
Also, do you have vitiligo? (Areas of hypopigmented skin - areas of skin that are especially lighter)?
Well, some symptoms do sound like a migraine variant. I have one that took them year to diagnose because at the time I was in my twenties I didn't have migraine headaches or auras I got cold, then the shakes and then stomach pain the vomiting all night. When I got to the ER I would sometimes have a sudden urge to poop and I couldn't make to bathroom sometimes . I would et dehydrates, low bp, very cold hands tingling. And so forth. So, this is he way I see some of your symptoms, 1.the racing mind, jumpy, fast heart beat, blood rushing may be a panic attack, or an aura? 2. The red whites of your eyes I don't know, also the pressure feelings I don't know, maybe your blood pressure goes up? 3. The pooping, tingling. cold, low bp, and you don't mention if you have abdominal pain? Do you have headaches? Pressure in your head pain in the head? Not the ears, are the pressure on the ears one side of the head and the cold? This could be the migraine variant. The way to get diagnosed is to see a neurologist. You can get an electroencephalogram or EEG. It doesn't hurt and they just put wires on your head to see if the electrical part of the brain is too high. I take sumatriptans to abort the migraine but I also take Topamax because I now get severe vertigo and double vision and flying lights and I will fall over. The Topamax takes all that away. I am also on Klonopin. So, you have to get the right diagnosis.
Also, is the pressure you feel on the sinus, ear etc. on one side? do you feel you are aware of what is happening at all times when you are pooping getting dizzy and fall off the toilet? Or do you pass out or don't know for a short time what happened until you hit the floor? This could be a seizure. You can also test for this with the EEG. So you can get the migraine and seizure tested at the same time.
The reason I ask about steroids and pigmentation is these symptoms sound a lot like Addison's disease, with episodes of Addisonian, or adrenal, crisis. Addison's is a chronic adrenal insufficiency. Adrenal crisis can occur with Addison's, or in people without Addison's but who are on steroids and stop too quickly or do not taper longer enough. Go read more about it and see if this sounds like your episodes.