TO ANY AVAILABLE MEDICAL PERSONNEL

Hi

I'm very scared--Besides the onging problem I've been having (hit in head 2 mos ago, dizziness, lack of ffeling etc) Earlier today, I began seeing flashes of light, almost like lightning. That's still happening. As I was typing earlier, my hand suddenly (without my control) snapped shut and jerked and I had a whole range of sensations and I felt very odd--my heart began pumping erractically (not fast, very unrhythmic) and so as it was happening I took a toprol (lowers BP and HR)...I feel very odd; my head feels tingly and likes it on fire on top just over the forehead; my vision is shadowy in some ways and my hands feel weak. Blood pressure after taking toprol was 128/90, pupils are normal, heartrate is now steady but I still feel odd. I'm feeling a bit confused mentally; my mind isnt ''clicking'' to stuff as fast or keenly as normally, and my vision seems like I can't idk focus as well.
I'm really afraid. My parents, who are longtime nurses, dont think this anything serious. But I'm scared. I dont wanna die.