As a result of doing a lot of meditation and contemplative practice, I became very sensitive to others - particularly to those who were suffering greatly. I quickly found that I just did not have the spare energy or time to spend on constantly working to regain equanimity, so I reduced my social interactions to the bare minimum and became very selective regarding who I spent time with. Energy drainers were dropped pretty quickly when I became aware of the cycle.
Making a skillful decision is impossible when you can't tell which is purification and which is simply sensitivity to other persons dukkah. I've noticed it especially after a longer deeper sit, where I assume it's just synchronization with another person's more constant level of mind noise, meaning the problem lies with them and fail to take into account my own sankharas.
how other people have responded to the increased energetic sensitivity that comes with practice?
(One aspect of that being the fact other people's Sankaras can bring up your own very deep conditioning).