I have started some upper body weight-lifting in the last week and I have a couple of questions.

1 Why do my muscles feel so weak? It feels hard to even lift up my arm after doing it and even for a day or two later.

2 I have done weight lifting a few years ago and it never felt this hard on the muscles. Does the LC have something to do with this?

3 Don't you have to have carbs to build muscle or is protein good enough?

I only do about 5 exercises of 3 sets each at 50lbs
and when I'm doing it it feels ok it is after and the next few days
I give a day in between for the muscles but I don't feel like doing it again till three or four days and I wonder why? Sometimes even doing household chores my muscles feel weaker.

Any advice would help

Thanks
Sandy