Hello, I am 17 years old, and almost 2 weeks ago i experienced a caffeine overdose caused by a dangerous pre-workout supplement. Throughout this time i have quit smoking cigerettes and marijuana and and experienced many withdrawal symptoms. The first week or so was horrible and could barely see straight. body temp was fluxuating and I was shaking badly. the severe symptoms have worn off, but when i wake up in the morning i feel very disorientated (almost a hungover feeling) which goes away throughout the day. I was just wondering if this is normal and how long it should last? Thank you very much, awaiting your response. Reassurance feels great.