Hey Glenjo, hope you decided to stay in and rest and enjoy your you time.
I'd definitely take feeling unwell as a sign to lay low.
I haven't been to an al-anon meeting yet. I almost went to one last night but decided to stay in and netflix binge on Queen of the South instead. The way I see it is that I'm already doing a lot of work on myself just by seeing a therapist, journalling, researching, and reading this forum. And the amount of work we are all doing in our heads post break-up (subconsciously as well as consciously) is pretty exhausting.... so from my point of view, you're absolutely spot on to stay at home! Tonight and any other night ! x