Sometimes life gets overwhelming op.
Happened to me in March last year.
Really I think it had been building up for quite some time but a fair amount of stress from my business and con workers at that time along with a really rocky stage with dh seemed to just tip me over the edge.
I couldn't think straight and panicked and worried to an extreme about every small thing. I would tell myself I was being silly but no amount of thatbstopped it for me.
I was so bad at one point that I would wake up having panic attacks about four to five times at night.
I kept feeling like I couldn't breathe and had convinced myself I had something in my throat or had a reaction to something.
I drove to a local small hospital on a Saturday night as I was so frightened.
They sent me away saying to make an appointment with my gp 
I then called 111 and had a lovely nurse call me back who must have realised what was happening. She spent 30 mins talking to me on the phone before I felt calm enough to sit down and not pace.
I spent that weekend in an awful state of mind and didn't want to be left alone in case I suffocated. It was absolutely horrendous.
I went to my gp on the Monday and cried the minute I got in the room. Partly from fear and partly relief that I felt safe there. He prescribed a very low dose medication to help me calm down and diagnosed ptsd and anxiety (previous health condition and emergency surgery causing the ptsd)
I had to keep telling myself in my head that I was fine and nothing was going to happen etc. After a week a felt much calmer and I have learnt how to deal with myself when I get a really bad moment but I still get to that overwhelmed panicky stage however I'm learning how to deal with that.
Do you have a lot of stress at the moment op?x