"i took 1 30mg capsule of cymbalta yesterday. that will be the only dose of this medicine i will take. i had to leave work yesterday because of how sick to my stomach it made me. i felt jittery and lightheaded all day. i didn&#039;t take it this morning. i haven&#039;t felt jittery , but i have been extremely lightheaded and have had a headache all day. all that from one dose. i have been on many anti-depressants over the years. the only other one that made my head feel like this was prozac and i didn&#039;t stay on it long. having a job, i can&#039;t afford to be sick from side effects. i will be calling the dr. tomorrow and telling her i want to try something else. also, i have head a lot of reviews about this drug and most that i have read are not very good."