First, I'll refer you to the Reiki forum where some of your questions will be answered.
The tingling in your hands is the activation of the energy!! Wonderful! you have been attuned!
There is no "normal" for the client during a Reiki session. Everyone is unique in the way they process and receive (or block) the energy. Your daughter was receiving it! The next time you work with her, if there is pain....ask her to breath through it (with her permission--always with permission). It is best to work through it, rather than stopping. Most of the time, people feel relaxed and quite blissful but in other cases, pain can arise as something is releasing.
Your hands may continue to "tingle". Most importantly, work on yourself, so that you may become a clear channel for others!!