@Pill2Chill (Again) (As a note, this post was kind of me rambling over 30 minutes as I evaluate my current state) I'm starting to fear for my cardiac health - not that there's any persistent problems, but going by the psychonaut wiki, I've exceeded the "toxic dose" multiple times now. It's not like I'm 6'3" 220 or something - I'm small. The dose I did was far, far above the only "lethal dose" I can find. I might be experiencing mild symptoms of overdose - which I've never heard of - but I don't doubt - killing people, but I also can't actually tell if I'm overdosing because some of the symptoms are not even close to overdose level.
Right now, I'm experiencing arm pain, which I've experienced before - generally at higher doses, but not necessarily close to what I'm at.
My legs are tingly. I can't tell if that's even bad though, because they were more than tingly at the peak of effects, while my arm was definitely not in pain.
Sometimes at higher doses, I can feel my pulse in my neck without touching it. I don't feel that now, which makes me think I'm not as in danger as I thought I was.
I think I'm straining my arteries too much, and that's causing pain. My heart is healthy as of the last time it was checked, and I don't have any chest pain.
I put my legs over the sides of my bed. I think that blood was pooling in my lower body/upper legs without reaching my feet and lower leg. I've been laying down a lot. That lessened the feeling, but my feet are still tingly. When I raise my legs above my body, they get shaky.
I might need some of what you have to lower my blood pressure. But benzos in my possession tend to lead to me taking far above what I need, and blacking out. So I'd have to discipline myself and use them to help with stimulant comedowns and not to forget about life...there was a week I pretty much gave myself amnesia anytime I was home. Not my proudest moment(s).
So my symptoms that I've experienced during the ritalin comedown (I guess it's still going on) are arm pain, lower leg/foot tingling (sort of), faster heart beat (not irregular, though: I checked that), dizziness upon standing (sometimes).
Going down a list of overdose symptoms, most don't apply to me. So I don't think I'm overdosing, which is weird, because the lethal dose must be higher than what psychonaut says - or else I would have overdosed several times - even if just a moderate overdose. I am however, risking my health to an unnecessary level, and should probably stop. I advise having something to lower blood pressure if you ever get as high as I did (or relatively near it): deep breaths isn't going to help me long-term...