New and not sure about symptoms

Hi, my name is Kate. I'm 24 years old and have been experiencing strange symptoms since I was a kid. The last few months I have been having a lot of strange symptoms and the doctors don't seem to know exactly what's causing them although they haven't checked me for seizures. I'm hoping someone on here will recognize some of my symptoms and be able to give me more information on what this could be. 1. A sense of deja vu frequently along with a memory of having dreamt the sitaution before. Bizarre, I know. Happened more often when I was a kid than it does now. 2. Strange changes in vision, hard to describe, especially after playing video games or being surrounded by blacklights or flashing lights. 3. An overwhelming odd sensation, feeling like something is not right, with difficulty concentrating. Usually causes a panic attack. Sometimes it's so overwhelming it causes me to abrubtly stop what I'm doing and occasionally I just stare (I'm perfectly aware of what I'm doing though) 4. I've been experiencing bursts of light when I close my eyes at times. That's been going on for years and I don't know why. 5. Strange sensations in my arms and legs. They may feel abnormally "light" or "weightless", I'll get tingling, muscle fatigue, or difficulty coordinating movements, along with yet another hard to describe "odd" feeling. 6. I will occasionally get flush or goosebumps for no reason 7. I'll experience dizziness, lightheadedness, near fainting episodes, and odd balance problems. 8. Recently I've been tasting blood in my mouth when there wasn't any there and smelling odors like something was burning or really dusty. 9. When I touch something, occasionally it doesn't feel like it's supposed to. It may feel lighter than normal or just feels "off" 10. Sometimes when I look at things colors seem brighter, almost glowing, and sometimes they just look odd for no reason and I have no explanation of how they look odd. 11. I'll get odd sensations in my chest, like my heart is beating too slowly or to weak even if my heart rate is normal. 12. I'll have sensitivity to lights and sounds and even "busy" images or situations where alot is going on. 13. I have a rapid heart beat and occasionally will feel like i'm not breathing well or will hold my breath without realizing it. 14. Movements seem exaggerated That's about it with the exception of about a week ago. I was laying in bed when it suddenly felt like someone hit me on the back of the head with a bolt of electricity. I felt an electrical current through my head and neck, heard a loud buzzing in my ears, and my head flung forward violently. That really kind of hurt. These symptoms don't all happen at the same time, sometimes I'll only experience a few of them or even only one or two of them. Some symptoms may last only a short period and others last all day. I'm sorry this is so long but I'm really confused and am hoping somebody here will be able to relate and help me out. Thanks for your time