Thudding in head

I have a constant thudding sound in my head like a thudding besting noise and it shakes my brain this is happening constant and my vision has started to go fuzzy!!!!i feel sick i have been up to a n e and they say its still just stress!!!!!!!it is getting more and more severe each day and no doctors are taking any notice i am convinced this is now a brain tumour absolutley convinced yet chasing the significent tests is becoming frustrating

If the docs say it's stress what are they recommending?

Therapy and anti depressants....i dont tbink its needed im depressed because of the brain jerks and the weird vision