Hi hootswithowls and welcome to NeuroTalk(NT).
It appears you are talking about Braintalk(BT). BT had problems and was not a viable site for quite some time. Doc John started NeuroTalk for the many of those who were lost without BT. Many of those members decided to stay at NeuroTalk even after BT came back online.
This is why some usernames are familiar to you

Even though this is not were you started out 15 years ago you are very welcome here
Best wishes on your upcoming MRIs and I hope you receive some answers, 15 yeas is a long time with symptoms nd no answers
Take care!