What are the symptoms opiate withdrawal?

Not pleasant : Some of the symptoms of opiate withdrawal can include cold sweats,  diarrhea, nausea and vomiting, body aches, anxiety, cravings, cramping, chills, tremors, goose bumps, agitation, runny nose, yawning, and insomnia.

Nervousness: Nerves feeling, tachycardia , abdominal pain , may be fever , even siezure and death it is preffered to give methadon in decreesing dose.