Hi doctor, I have been under a lot of stress recently and been suffering bad headaches and a large amount of head pressure as weel as neck and shoulder pain for the past three weeks, the stress is gone now but I am now left with stiff neck and shoulders which is affecting my sleep. I also have a clicking sound in the back of my head which I only hear when I am lying down it is in sync with my heartbeat , I am worried that due to all the head pressure over the past three weeks I may have caused damage to my head, is it worth getting an MRI? Also what treatments are there for stiff neck and shoulder? And the clicking noise in my head?