how do you cure a speed comedown?!

Try the herb Valerian, it's like a herbal Valium, a lot of people use it for stress and anxiety, it's also a muscle relaxant so it may help with the arm pain as well. You should be able to get it from a pharmacy or herbalists.
Have a look at this link for more info:

http://www.highernature.co.uk/Products/V…

One more thing, no more speed ok. Sorry to sound like your Mother :-)

Smoking weed works pretty well, taking any downers as your coming down off any uppers always helps you eat and get a good nights sleep, and the downers will make you wake up feeling totally normal and healthy again, try some ambien, bars, weed, cheese or something along those lines. Youll pass out after you have a good time and wake up feeling just like new :) From years and years of experience with multiple drugs in my past and having overdosed on tabs by taking over 20 (lost count and the lethal limits 8, shouldve died at least 3 times that night),... sleep is always the best remedy for any sort of comedown off of any drug. Your body heals itself when you sleep

You are feeling ******* crap from a speed comedown, am i correct? hence the word comedownnnnnnnnnnn =). As for the random pains in left arm and leg, just a thought you do know speed amongst other things can cause heart attacks? get a check up, you do not even have too mention the speed, unless you want too and doctors are sworn to secrecy so tis all good, gl.

Life, a good friend died through years off speed abuse, they had a heartattack aged 42 :(.

smoking weed, loads of people do it, get high with speed or pills ect, then go home or whatever and smoke weed to have a gentler come down that helps you sleep.

go get some flower essences from the health shop, should chill you right out, rescue remedy or emergency essence. speed is a dirty orrible drug man, go au naturelle when doing drugs, stay way from the powders..

Dont take speed.

em you prob heard this already but if ya doing drugs like that pains are part of it,you should die