"There is a probably natural and learned reticence with myself talking about my early life"

Pamela Stephenson is likely referring to her own individual experience of being reticent when discussing her early life. This reticence might be both natural and learned, indicating that it might be an instinctive reaction to safeguard her personal privacy, or it might be something she has actually learned over time. It is possible that she has had negative experiences in the past when discussing her early life, and so has developed a hesitation to talk about it. It might likewise be that she is simply unpleasant discussing her personal life in public, therefore has actually established a habit of not discussing it. Whatever the reason, it is clear that Pamela Stephenson has a strong sense of reticence when it comes to discussing her early life.