Exposed to alarm loud noise ear ringing

Can someone please help me i was exposed to loud alarm sounds at work and ever since i have ringing in my ears and really bad pressure around my head and also i feel as if i cant relax i know this has to do with my brain because i cant even feel my body how i used to ... also i am very sensitive to sound its hard to sleep..  can someone please help i am suffering ... 

When were you exposed to these sounds? Was it intense and over a short time or over a long period eg every day?

Hello marina thanks for replying. This was everyday for 4 weeks but i am sure this started instensively this one time when i was sitting under it eating my lunch at work... this is when the ringing starting occuring.. and now my head has always this constant pressure and since this incident has happened I dont feel the food going in my stomach to my brain and anytime even it its empty it stays the same feeling as in my brain is not getting the signal to the stomach if this makes any sense to you.. it sort of like a constant feeling even if the food is inside the stomach or not .. to me it feels numb thats the best i could describe it