30 weeks, nausea is back with a vengeance

In addition to not being able to sit, stand or lay down properly without pains, even nausea is back. 😭 Diclectin does not help much other than make me sleepy. Any triggers like bad smell will trigger vomitting. Even my baby moving or kicking will trigger my gag reflex (and my baby is so strong and extremely active!!!). I throw up like nearly every night now, and gag so very often. And I thought 1st trimester was terrible...😖 How do you mummies cope with these 3rd trimester issues? 😢