Work at 23 weeks

So i went into work to start my shift at 3 today and just couldn't do it.

I got all upset and was trying to explain to my collegue how i just couldn't be at work and didnt want to be here. Its all just got too much, i work in a restaurant doing shift work on my feet all day, sometimes until midnight. As a manager im responsible for the whole restaurant when im on my own, the responsibility is overwhelming me.

Luckily my collegue was really understanding and said he'd do my shift and sent me home to rest.

Just feel like I've let myself down and not sure where to go from here.

Anyone else finding work hard?