Hey @peps I'm sorry to hear that things are so rough for you right now. I'm glad to hear that you've been reaching out for some support, and that the helpline did help you. I can understand the idea of going to work and putting on a brave face can be incredibly daunting!
Hmm... depending on the nature of your job (like, this would be harder if you work in customer service), you could still go but just give your boss/colleagues some vague reason - can be the truth or a white lie, like 'I've had some family issues' or 'facing some personal challenges' for instance, and then just not really talk to anyone too much. What sort of things are you worried about them noticing?
Sometimes it helps me to remember that what may seem blatantly obvious to us may not be so distinct for others. Most of us spend far more time thinking about ourselves than about anyone else, so the likelihood of anyone knowing what's up is pretty low.
Trust your instincts too - if you're really needing another day off ( and it's possible to take one) then it might alleviate some of the anxiety, which in turn should hopefully mean the SH urges will ease off too.