I Have Had Bad Taste In My Mouth For Months

I have had bad taste in my mouth for months (no bad breath). Not constipated and primary medication is enalapril 1x daily and tamsulosin. I do not take tam regularly due to rashes that develops on on certain parts of body. I am 69 y/o. My doctor says taste will go away but bad taste remained unchanged. Also wake to urinate 2-3 times nightly. Sleep interruption.