Hi Cobber!
I had it through the whole first year or even a bit longer that this intense anxiety and other withdrawal symptoms like sleeping issues suddenly came back. I guess sometimes it can also be related to what's happening in your life. When life was really stressful, I would react with the same kind of withdrawal like symptoms.
But over time it got better. I don't know how your self care looks, in the first year I would find myself again and again in situations where I had abandoned my self care routine again and therefore felt stressed. Maybe try to fit in some relaxation time, a meditation or some exercise depending on what helps you best.
I hope you'll feel better soon
