Been using afrin every night for years; one spray in each side. Anyway, I have had pretty servere panic attacks and shaking. I was wondering if it can be the afrin. I have stopped taking it since yesterday and I am concerned that I am going to have panic attacks for ever. Please let me know if anyone else has made it through the same problems?? I have also has 20 plus blood clots 2 years ago that the doctors have never figured out; can this be related? I don't have rebound problems with afrin; so I rationalized that I could still use it; pretty sad that I have not figured it out sooner. oh well, I am trying now. I just want the panic attacks to stop! Thanks