Depressed and Anxiety.. Afraid to get help!

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I know that I really need to do something about it. I have had anxiety and depression for many years and I can hide it very well. I never show it on the outside. But deep inside, I am crying. I am crying to feel happy and to feel normal. I wake up in the morning and just wish that it was still night time so I can just stay in bed because getting out of my pit is a chore. I have to because I have a 3 year old and He needs me. My husband works and I also work, but that’s where my problem is. I started a few weeks ago and already my little one is poorly so I have to take time off. I told my manager and she’s not a happy bunny. Usually most people wouldn’t give a shit but for me. My anxiety all comes on at once! 1) why is my son poorly, 2) did I do my job correctly before I left early, 3) am I going to get into trouble at work for having to leave early? 4) I have left everyone short staffed and feel massively guilty. 5) I feel embarrassed that I had to answer my phone while my boss was stood in front of me, 6) I should’ve done my job quicker and now they’ll see I am incompetent because I was busier than usual, which means I ended up being a bit behind. See what I mean? The most meaningless, pointless things to some people.. but for me, it creates high tension and anxiety :( I can’t actually cope anymore. I am still shivering, cannot sleep and got a massive headache from all the tension and stress. Does anyone medicate for this reason at all? How do you deal with it if you don’t?