I'd agree with the guy's above concerning catastrophic thinking. Everyone can feel overwhelmed at times, especially parents who think they must be on top of everything all the time and looking as if they can manage anything!
Im not sure whether this will be any help: Companies usually encourage you to see occupational health due to company policies around welfare of staff. It's typically a 45 minute meeting and they may offer you counselling or you can ask for it if you wish. They will ask if you have any plans or ideas yourself though so (if you do decide to go) you could say you are booked onto CBT. I recently had to go see them after being off sick due to stress. It was mostly to see what the company could do to better support yourself/employees in the future and to see what you may be able to do yourself. I thought the worst before going. I was sure I'd lose my job due to my mental state but things have actually improved which was a massive shock! Not sure if its similar, as mine was mostly work related although other factors have come up after talking to my work place which made a lot of sense and I realised it wasn't all work related and there was some other personal issues that were hiding away, not necessarily negative ones either.