Im feeling really unwell nauseous, I've vomited, headache, dizzy etc. Could it be linked to heat stress? It was 34 degrees here today and hotter in my classroom I tried to keep cool and drink lots of water but I really felt horrible I'm also having lots of Braxton hicks (I assume that's what this tight feeling is) should I be concerned? Baby is moving well but I feel dreadful... I also have a naughty 2yo so "resting" isn't easy

(to top it off my DH is stuck on a train coming home from work...)