Hi The pressure feeling in my head is quite common, the clicking noises I hear in my head are like a clock ticking but not a regular tick, I get allsorts of ear noises, buzzing, whirring like you describe, an ocassional thud (thats a weird one) I don't think you have experienced anything abnormal.
It's one of those things this illness that brings on something new all the time, I reckon it does it to keep you on your toes. . .lol.
I hope you start to feel better soon.