Hi Newly Mum!
First off, congratulations to your pregnancy, I know that it certainly brings joy to have that little one in you. Now re all the medications you take, that's better that you cease on self-medicating. Go to a respected and trusted obgyne so that your sickness can be addressed accordingly. I know there are some medications that are safe for pregnant women. Now, for the mean time, to lower your temperature, you can do steam bath and take a lot of water. That is a must when pregnant, always be hydrated. Your body needs more water now before you were pregnant.
Keep us posted!