Feeling lost after 17 years with no diagnosis

Hi, I'm a 24 year old female and have been getting seizures since I was about 7 years old. I had my first seizure after a teacher told my family I wasn't paying attention in class and referred me to get a hearing test done. I had a normal hearing test but ended up having a seizure in the doctor's office after getting a vaccination. Turns out I had just had that same vaccination a few weeks ago and got a double dose. I remember feeling like time slowed and then dizzy but then blacked out after. Apparently I drooped over onto the exam bed, my entire body stiffened, face contorted and I started shaking. I was then rushed to the hospital. All scans (EEG and MRI) were normal. My platelets were weirdly low but since then i've had normal platelets. Fast forward to now, I've had probably about 15 seizures in my life since. The situations vary widely, from watching TV, to get my blood drawn, eating lunch, running in a friend's yard, talking with friends to going to a vet's office. I can't seem to find any correlation or trigger. I have had three seizures in medical settings though (after getting a vaccine, blood drawn and then ears pierced). I have a pretty high pain tolerance though and have had many vaccines, blood draws and was even hit by a car last year while biking and didn't have a seizure. Doctors have told me my entire life that I'm just anxious in medical settings, even though the majority of my seizures have happened at home, while I wasn't anxious. I work in the medical field now and do not feel on edge in medical facilities! Until this year, doctors always told me I had "psycho-somatic seizures"........ I always get this specific feeling before the seizure (weird, floaty, time feels weird, hearing goes), black out and then when I come to I am incredibly disoriented. I first feel very very relaxed and always think that i'm waking up from the deepest but also trippy sleep if that makes sense? I've had seizures where I keep waking up and blacking out where I feel as if it has been happening for a full day but it's only for a few minutes. My seizures generally last about 20 seconds and then I'm been disoriented afterwards for as long as 3 hours. I am then incredibly exhausted. I am really afraid because I recently had two seizures in the last month (which has never happened to me). My last one was the worst I've ever had. I was in a store and went to pay then blacked out. I guess I stood there with a blank look for a few second then collapsed, my eyes rolled in the back of my head, my body stiffened and shook and my jaw opened and closed. When I came to, I was incredibly out of it and vomited (which I've never done before). I felt completely fine before. Sorry that this is so long and jumbled. I'm just feeling lost and looking for any guidance. I got an MRI, sleep deprived EEG and ambulatory EEG and even a Holter heart monitor test and they're all coming up clear. Blood tests are even fine. Has anyone with epilepsy had a similar diagnosis story?