is this normal....

so i keep telling my doctor something isn't right. Last month went to the emergency room for cramps and vomiting and pressure pains. i was 28 weeks then. they told me to drink water and then sent me home. im now 33 weeks. i still have pressure pains, break out in sweats and i vomit every single day. now my joints hurt worse and worse. my 30 week and 32 week check up they told me i was fine and to walk and drink water. i drink water and i work full time...a job that requires me to walk and be on my feet. i tried the nausea medicine and it does not work. I still throw up. I feel like my joints are swelled up. i still have the pressure pains in my lower abdomen but no one listens to me. is this happening to anyone else? ive change my diet to lighter food n hasn't help. im 33 weeks now and it hasn't stop. i have been like this for about 6 weeks.