'Burden' in the Bible

When I was with you and needed something, I did not bother any of you, because our brothers who came from Macedonia supplied everything I needed. I kept myself from being a burden to you in any way, and I will continue to do so.

Besides everything else, I have a daily burden because of my anxiety about all the churches.

Granting that I have not been a burden to you, was I a clever schemer who trapped you by some trick?