This is my first post here so really hoping someone can help. I started on sertraline 50mg nearly 4 weeks ago for a severe bout of anxieth and felt the benefits straight away. After 4 days I was back to myself and feeling great. 10 days ago I started on cerelle mini pill and 1 week after taking it my period came back stupidly heavy, my anxiety has got so much worse, I'm suffering with really low mood, I'm constantly tired even though I am sleeping fine and generally feeling really unmotivated and low. Do you think that cerelle is doing this and I should stop taking it...has anyone else had anything similar?