Still throwing up and so sick!

In the third trimester and the sickness is still a problem for me. Some days I can’t even keep anything down or have the will to eat. 28 weeks, still so much time to go! I know it’s crucial to get my baby the nutrients he needs but I can’t keep food down right now. & to make matters that much worse all the extra pressure on my bladder is causing me to pee myself almost every time I throw up now. 😞 Any tips for later pregnancy sickness. Most the stuff I used to survive the first trimester morning sickness isn’t helping. Down 5lbs now. 😔 2 1/2 weeks til I see my doctor.