Indeed, withdrawal from fentanyl is a very difficult and painful process, and the risks should not be underestimated. I read the article in detail at Fentanyl Withdrawal: Symptoms, Timeline, & Treatment Options | United Recovery Project , where everything is explained step by step. They describe the symptoms - from insomnia and muscle pain to severe anxiety and seizures - and provide information about the time frame for each stage of withdrawal. Most importantly, they emphasize the role of professional help - not only from doctors, but also through the support of therapists, proper medication and creating a safe environment. This is not a path that should be taken alone. If possible, it is better to choose medical support, even if it seems like "just withdrawal."