Sorry for the long story but I need advice on why I'm having uncontrollable panic attacks for no reason.

Last Friday, around the 13th, I woke up (only 2 hours of sleep), with the most horrblie panic attack of my life. Outt of breath, shaking, nausea, light headed( feeling of blood rushing through my body) and overall confused. It sarced me so much that I called a ambulance, even when my husband tried  to clam me. They took my vials, and said the hospital was too busy due to the covid raise recently. I just went back inside my house, and tired to ignore my pain symptoms. 

The next day,(Saturday)I woke up with the same thing! 2 hours of sleep, all the works. I drive myself to a hospital early morning and they just said it was panic attack. I tired to explain to them that it felt much worst then a panic attack. They just ignored me and give me a Valium. I took the, pill, went home, tired to nap but nothing worked, I was still very uneasy. 

The same day, I went to a second different hospital. They took blood and pee, said I was fine then give me a Ambien. I passed out for maybe about 2 hours then they woke me up, I started to throw up alot and they pretty much kicked me out saying they already discharged me. Dragged myself to my car, throw up then passed out for like 3 hours, woke up in the back seat of my car then drive home to try to sleep it off. (It was the next day, Sunday at this point).. I did not sleep. 

I went back to the same hospital that just  kicked me out for the second time and pretty much said, "if no one helps me sleep, I'm going hang myself. Please help me, I have gone 3 days without a full night's sleep"

At that point they did take me into the psych ward and kept me overnight and I even talked to a psychiatrist person. They give me something to calm down and I was able to get a full night's sleep. 

The next few days was me working my job and talking to my primary doctor. She give me hydroxyzine for daily use, Xnanx for emergencies, Zyprexa for sleeping. 

I took Hydroxyzine once and had bad side affects of unrealistic out of body feeling panic attacks. (Still trying to recover from it). 

For now the Xnanx and Zyprexa helps me feel normal now but I hate medication. 

Questions: 
Why did I suddnely start have uncontrollable panic  attacks? 

And is there a better way to cope with them? Maybe 420 or a supplement?