Help! Help!

I was really scared today, I was at work and my bosses kept giving me thing to do and we have are short of staff there is only two of us and the phones keep ringing and ringing, to me they were getting louder and louder and I kept smelling strong smells, the light seemed brighter all of a sudden i had a headache and had to get out of the office, i went into the toilet and cried my eyes out, i don't know what happened. I feel ok now, can anyone help me