@farmboy PAWS is the acronym for post acute withdrawal, here is an explanation from addictionsandrecovery. org website:
Post-acute withdrawal feels like a rollercoaster of symptoms. In the beginning, your symptoms will change minute to minute and hour to hour. Later as you recover further they will disappear for a few weeks or months only to return again. As you continue to recover the good stretches will get longer and longer. But the bad periods of post-acute withdrawal can be just as intense and last just as long.

Each post-acute withdrawal episode usually last for a few days. Once you've been in recovery for a while, you will find that each post-acute withdrawal episode usually lasts for a few days. There is no obvious trigger for most episodes. You will wake up one day feeling irritable and have low energy. If you hang on for just a few days, it will lift just as quickly as it started. After a while you'll develop confidence that you can get through post-acute withdrawal, because you'll know that each episode is time limited.

Post-acute withdrawal usually lasts for 2 years. This is one of the most important things you need to remember. If you're up for the challenge you can get though this. But if you think that post-acute withdrawal will only last for a few months, then you'll get caught off guard, and when you're disappointed you're more likely to relapse.