SWIM concerned he has overdone the Ritalin

[student_is_here]

Basically about 24-26 hours ago SWIM took 6 x 10mg Ritalin over the course of about 3-4 hours. SWIM took 4 orally but snorted the last 2. Everything was great and happy, etc, etc.

SWIM fell asleap about 9am and woke up at 3pm. Then, about 1am (2hours ago) SWIM took another 2 orally. SWIM was not expecting much and was planning to take more over the course of the night (had 'things' to do).

HOWEVER, SWIM has for the last hour and a half has been expieriencing strange sensations in the left arm. SWIM is more alert, but not amazingly. The left arm is at times slightly numb maybe... but SWIM also is getting random (not terrible but noticable) dull pains in the arm. SWIM started freaking out a bit and felt a chest ache also, but that was very mild and short lasting..

also, an odd lump has appeared on swim's thumb. small and painfull, like a tiny allergic reaction...

SWIM thinks he is ok now, but the thing is, does this mean SWIM should think twice before retaking? SWIM has plenty more and a fresh batch of Adderall XR too!

any advice would be amazing!