Dreams often weave together various symbols and emotions, and yours contains several intriguing elements that could represent deeper meanings.

1. Old Friend and Help: Receiving a message from an old friend may indicate a longing for connection or unresolved issues from the past. It could suggest that you might be feeling a sense of responsibility or a call to support someone in need.
2. Stairs: Stairs often symbolize a journey or progress. They can represent moving up in life or facing challenges. The hint toward the stairs by your friend might suggest that there are steps you need to take in response to the situation at hand.
3. Legless Woman with a Baby: The legless woman could symbolize feelings of helplessness or being restricted in some way. The baby might represent something new or vulnerable that needs care and protection. The transformation of the baby into a cat could signify independence, curiosity, or adaptability.
4. Chase: The image of the woman transforming and chasing you could indicate a feeling of being pursued by unresolved issues or fears. This transformation from being legless to having legs might suggest that these feelings or issues are evolving and becoming more tangible or actionable.
5. Driving Away: The act of driving away suggests a desire to escape from a situation or feeling overwhelmed. It might reflect your instinct to distance yourself from unresolved matters or emotional burdens.

Overall, this dream could be exploring themes of connection to your past, the challenges of helping others, and the way unresolved issues can transform and pursue us. It might be worthwhile to reflect on any current relationships or situations in your life that resonate with these symbols. Consider what steps you might need to take to address these feelings or connections.