Pp ocd?

I am currently 3 months pp and I had a panic attack 2 weeks ago when I thought/felt like I was going to die soon. I haven’t been able to shake that feeling off and when the thought comes I have a panic attack. I can’t live like this. I’m not able to enjoy my life . Is this pp ocd? I’m currently on Zoloft and hydroxyzine . But I had a very bad panic attack again . Seeing a therapist on Friday. Will I ever be myself again. I am afraid to die and I know I will one day but it scares me to think it’ll happen sooner than expected and my children are small. Breaks my heart.