December and January is that time of year when people of many different faiths celebrate. So many opportunities to join groups in houses of worship. I just want to say that it is okay to go and okay to skip. Just make sure your physical comfort/support is addressed to keep your pain managed while pursuing your spiritual needs of community and fellowship.
In addition Christian Christmas and Jewish Hanukkah, there are Shinto, Sikh, Muslim, Hindu, and Buddhist holidays in the first couple of weeks of January. The Baha’i faith celebrates World Religion Day January 17, 2016.
A great resource for tracking holidays is http://www.interfaithcalendar.org/2016.htm