everyone withdrawals differently, and different opiates have different withdrawal symptoms. I've recently noticed that after prolong morphine usage, and then withdrawal from only morphine I get real itchy watery eyes, and I sneeze a lot. I also noticed the shaking hands aswell, although its not to the point where I cannot type. an oxy only withdrawal, I get real emotional and can cry real easily, my tongue gets a weird texture to where if you look at it, the taste buds look HUGE. and heroin only withdrawal is a lot of body aching, runny nose (actually the runny nose I get on everything). but I notice with heroin that its a lot of body pain.
I never really get diarrhea or throwing up during withdrawals. I will however have to take a lot of shits, but its never diarrhea, and the first one which I call "the plug" hurts so bad because its the dryest turd obviously because its been in your colon so long you body has sucked all moisture out of it. after that, they come out pretty easily.
but what I"m getting at is that withdrawals effect everyone different, and different opiates can have different withdrawal symptoms. not all opiates are equal, but we already knew that.