Deja vu/panic attacks - Very tired of being undiagnosed

Hi all, I'm very new to thinking that I possibly have simple partial seizures, however after looking through many posts here, it could possibly explain my symptoms. Over the last few months I have started having these very brief episodes of intense deja vu/flashbacks, and have realised that they mostly revolve around dreams I've had. I usually have the worst ones in the morning, and lead to what I thought was a panic attack. Then, through the rest of the day, I have extremely brief (less than half a second) deja vu flashes, that actually feel like my brain jolts somehow. I initially thought there was something wrong with my heart (as the panic attacks initially started with severe heart palpitations), however these have stopped, and after doing an ECG, EEG, and a holter test, nothing wrong at all. I'm getting to the point where I am so over the whole thing and starting to think that I'm losing my mind, and also that this will never stop. Does anyone have a similar thing happening, particularly with the brain 'jolts'? Any help would be really appreciated, I don't know how much longer I can keep feeling like I'm losing the plot! Thanks in advance, Gemma