I Have Just Refilled 2 Rx's, One Is Trazadone 150

I have just refilled 2 Rx's, one is trazadone 150 Mg taken at bedtime and Zanax 1Mg taken twice daily and 1.5Mg taken at bedtime. And once in a great while I will wake up totally wet from incontenance. But I have notice that it is usually when I get my new Rx's filled. I have Chronic shingles in my right ear and and down the back of my head and back but only on one side. And on my eye but not in my eye. It hurts so so bad that I have questioned why do try to live through this. Something has taken away a great degree of my vision. Do you or anyone know if the meds can cause this and I have also suffered seizers also. Any reply or comment would be highly appreciated. ...Please