Proudly, I feel for you and right there with you on the feeling isolated. I can feel everyone around me getting so frustrated; I work in an office where most people have children, but they either suffered little or no morning sickness, so roll their eyes when I say how rough I'm having it.
I'm going back to the GP in the morning to see about being signed off again, I made it through a full week last week, but at a cost... I've not slept at all really the last few days from a mix of over exhaustion and nausea. It's made more tricky by the fact work put A LOT of new pressure on me. I feel like an absolutely rubbish woman for not coping well with this. Sorry for the whine, there!
I can also generally only currently stomach fattening stuff, so all my clothes are tight - I genuinely just look bloated and overweight, which isn't helping matters -_-