In my mind, yes, it could. I went through eight different meds before we found the right one for me, and one of them made me completely suicidal. It was really strange, actually, because the thoughts kept popping into my head and I was confused, because I didn't feel that depressed or anxious, and couldn't understand where the thoughts were coming from. Once I went off that med (was on it for 6 weeks) within 2 days my mind cleared up and the thoughts were gone.

Some meds don't work for some, but work well for others. It is definitely a lot of trial and error to find one that works for you - don't give up, Jess! You'll find the right one eventually! (And hopefully sooner rather than later!)