Hi, my name is legendofall! WCA advice required please.

few days ago I had my WCA over the phone, the lady was very nice and understood my mental health issues, i suffer from anxiety, depression and lower back pain, I explained each issue in detail and at the end of the 24 minute call, she told me that is all she wanted to hear, that i explained everything and she doesn't need anymore information from me, what does this mean? is this good or bad. Waiting for the letter via post about my decision. How long does this usually take? 

The next day I received another call claiming to be someone else and wanted to know about my mental health, I did tell her but I was really confused as I had already spoken to the previous health practitioner and did mention that I have already told the previous one my situation, she was concerned about me harming myself as I did mention I've had thoughts about bad stuff. I understand that bit but is this call just protocol and I don't need to worry about anything, its stressing me out completely, sorry for this long paragraph and appreciate if anyone can help, thanks

Thanks for the reply, was told I will receive a letter via post, this is ESA, I thought PIP is same as all this, sorry I am confused.