Does tramadol help with Generalized Anxiety Disorder?

I have GAD and have tried varies drugs that haven't really worked. I started taking codeine for Restless Legs but I had a reaction to it. I was prescribed tramadol as a replacement and find within a few days that my GAD has also reduced. I have how managed to stop taking the other 4 drug prescribed to me and still found that my GAD has reduced and my RLS had also completely subsided. I now take two tramdols at night but sometimes miss the morning dose. On the following day I have noticed that my GAD starts to return however if I start taking the morning dose again my anxiety almost completely goes. I have been taking sleeping tablets for about 5 year to ensure I sleep. I stopped taking them 4 weeks ago, although I find the first 2 weeks hard to sleep right through the night, I now feel more refreshed in the morning. I have not taken any other dose than the evening dose for the last week and found the my GAD has again started to increase. I will again be taking the tramadol in the morning from tomorrow. How are you getting on?

It could do because of its SSRI properties. However I'm not sure it's the best medication for this diagnosis? It is subject to becoming habit forming. I take Lyrica (Pregabalin) for GAD which works very well.

Tramadol is used in the treatment of back pain; chronic pain; anxiety; pain; depression (and more), and belongs to the drug class narcotic analgesics.