I Have Had Very Bad Panic Attacks Recently I Think

I have had very bad panic attacks recently I think today was pretty bad at work I had to ring a work colleague to get me down two flights of stairs. I start to feel it happen then i shake to a point i cannot move i do not feel sick but dizzle sometimes and at the corners of my eyes i may jump at things that increase my heart rate. It's only started about 3 months ago. I'm a very nervous person anyway and don't like meeting people but all my working life I have had to do it 31 years I'm now 48. I think I'm going through the menopause very hot at night in bed, plus not sleeping well really bad I was driving to work I got them shakes an was in panic mode I wanted to stop the car but I was in a middle of a very busy round about. I got to work but I should not of continued driving I was shaking gripping to their wheel an thinking how to change gears.