Week 7 on zoloft ..Frustrating

Had a great weekend. Most of my physical symptoms subsided but still a little bit of anxious thinking.  Then yesterday my anxiety came back. It fluctuates from feeling ok to anxious to ok to depressed. Like a roller coaster. Last Wednesday was like that as well.  It stinks after feeling normal this weekend. I even ate like i used to. I am wondering if eating so much junk set me up for failure.  I had been sleeping fine but did not sleep much last night.

Did any one else have frequent mood swings while starting Zoloft?   It is not ever day. Just some days. Off and on.