are there any bad side effects i should be careful of?
Yes. Watch out for any cardiovascular effects/problems -- like a pounding heart, trouble breathing/feeling out of breath, tight chest/anxiety. Also beware of psychological problems like anxiety, and paranoia, both very common with amphetamine use. Make sure to drink a glass of water an hour, to keep well hydrated (as amphetamines are very dehydrating). Also, I wouldn't take so many dexedrine every day; you will develop a tolerance, and furthermore, you need to keep getting sleep, eating well, and taking care of yourself -- and people tend to forget about these things when they are using amphetamines.
also, are these addicting?
Amphetamines arent very physically addictive, but it is very easy to become dependant on them and psychological addiction is very common. So yes, be careful, and don't do too much too often if you don't want to become an addict.
i was going to save the last 4, but couldnt resist the urge to take them. one day a while back i popped one every hour for like 10 hours, is that dangerous?
I find this slightly disturbing. IMO it is not a good sign that you couldn't 'resist' taking the leftover dexedrines. I would also say that popping a 15 mg dexedrine every hour for 10 hours (= 150 mg dexedrine total) is a bit excessive, especially for a new user. It's still unlikely that you would OD at that dosage, especially if you were taking the drug orally. I would slow down a bit though if I were you -- even if you don't give a fuck about your health, if you continue taking dexedrine at this rate your tolerance will build up very quickly!
i like how these make me feel when they kick in, and how they kill my appetite. so if i like these is there a chance i might like meth too?
Yup, amphetamines are euphoric...that's why people like 'em and abuse 'em. The appetite suppression is of course one of the effects, and also considered desirable by many..of course this can be problematic if you are using amphetamines so much that you cease to eat normally, and thus you become deficient in nutrients/calories...
If you like dexedrine (dextroamphetamine), then you will certainly like meth. Meth is stronger and more euphoric. However, as you seem to have gone a little nuts with your first experience with dexedrine, I urge you to be cautious with your meth use if you try it, because meth is even more psychologically addictive. Just be careful and safe, okay?