Sometimes church ladies (I know; I am one
) tend to go a bit overboard with the welcome wagon. They don't want to be perceived as unwelcoming, so new faces often get a full court press. I would assume that the intentions are good, an attempt to make you feel welcome, but the execution can be overwhelming.
Having said that, it is perfectly acceptable, and probably wise to take your time and feel things out. The invitations have been extended, it's up to you to pick and choose what, where, and when you decide to participate, if at all. Sit back and watch and wait and see what areas of socialization might appeal to you. It might be wiser, if you decide to participate, to join something that is just purely socialization or study focused, at least at first. That way, you won't be expected to have to "do" anything.
It took me a long time to learn how to say no to things I knew would be difficult for me to do. I have learned to either say, "Thanks. I'll think about
it" or just come right out and say that my health issues won't allow me to do _______ (fill in the blank), but I try not to elaborate. I will just use the generic "I have some health issues." If my inability to do something offends someone else, I just consider it their problem.
If you DO decide to socialize or participate, you could always talk to the pastor. He/she might be able to help you decide what things might be most suitable for you. I had to cut way back on my volunteering, and now, I just do some clerical things at home. It's a once a year event, and I take care of the registration process. It's plenty for me, but I still feel like I am participating. I am also planning to start attending a Bible study, which will just require my presence and nothing else, but will allow me to connect with others. I have a friend, who also has many health issues, who mails cards to people. She basically started a card ministry for the church and sends cards to new moms, new members, people who have lost a loved one, newly married folks, etc.
There are tons of ways to get involved and participate at your own pace, but only if YOU want to do so. Take you time, and try not to feel pressured.