Every Sense Stop Drinking Coffee About Three Weeks Ago, Now

Every sense stop drinking coffee about three weeks ago, now having trouble having a bowel movement, I am 65 years old, was having them when I was drinking coffee. Stop drinking coffee cause I have tinnitus and thought it would help if got off caffeine. Take high blood pressure also because I have back pain I also take 50 mg tramadol and Tylenol 8 hr muscle aches, started these two about 3 weeks ago, took a tablespoon of castor oil this morning about 8 no bowel movement yet when and brought magnesium citrate have not taken any yet, have not had a bowel movement in 4 days anything you can tell me to do would be much appreciated and thanks in advance.