Hi Jayne - is it possible you caught a bug? It's true it's very easy to over do it as well - we feel good so we just go go go... Then we hit a wall . Try to do something nice for yourself for the next few days - rest up. If it continues for an extended period of time have it checked out... It may be thyroid issues etc... As for the ringing, that's harder - have it assessed. I'm not sure what if anything can be done but you should mention it to your dr. I too had buzzing for a while after treatment but it was infrequent and hasn't been back for a while. I'm Also 1.5 months ahead of you so maybe it will eventually settle down - the deafness hopefully that will resolve itself... Your body needs time to heal... Though I've heard some hearing loss can be an issue. Take care! and take some done time if needed!