I Have Been Taking Duloxetine For 2 To 3 Month's

I have been taking duloxetine for 2 to 3 month's now , I'm not sure. I was started on 30 mgs first ,but I was getting aggressive . So then I was put on 60mgs . The aggression got better but I have the sweats really bad then I get the chills really bad. I don't have much of an appetite, I get dizzy,muscle pain, bad taste,and nausea and a few more things. So I called my doctor and he told me to go back down to the 30mgs. I asked him what then and I wasn't given a answer. What do I do?