Ringing in ears since three weeks now.

It started suddenly and I didn't attend any concert or wasn't exposed to loud noises. I work in a software company in Netherlands with no loud noise exposure. Due to Covid-19, no doctors are available till May. The ringing is maddening and am sleep deprived since many days now. Am not under any medications. I don't have cold( sometimes I feel though. It comes and goes) but no nose blockage or cough. My hearing if completely fine. Right ear sometimes feel blocked and I can feel water dripping sensations in it and sometime when am lying down I can feel my pulse in my ears.Am trying everything from listening to white noise and sleep music and binaural sounds. They don't help much. I just want to sleep. It's depressing and irritating me a lot. Please help me with your valuable suggestions. I have Xybel nasal drops from India with me. And I won't be traveling to India anytime Nothing on Internet about this is positive and it's making it worse. Please help me. Thank you.