I have neck pain/stiffness a lot, always complaining of feeling nauseous, I feel very dizzy and fatigued when I stand up after sitting down for longer than 5 minutes, not too long ago I got hit in the head and lost consciousness and straight after it I couldn't remember anything, but my memory slowly came back, I also get mild seizures, such as muscle twitching, muscle pain, and feeling overly weak but never lost consciousness I get headaches a lot and sometimes migraines but just over the past 2-3 years..