I haven’t had time for reading the last couple of days, i will go to the doctor again, got an mri, got cartilage damage, as feared, in my knee, getting older isn’t for cowards

I have a question, I would like to make chocolate chip cookies with sd, but everywhere I looked, they added extra leavening agents, is that really necessary?!
I also had a knot in my thyroid, it wasn’t active, they only removed part of it ( the surgeon had a bad day) but in the end, I was glad, they removed the complete thyroid of my friend, and she had a very hard time getting the hormones adjusted, collapsed, cos her calcium was too low, then had to take huge amounts of calcium, then the levels were too high, she now is ok, but she had a couple of rough weeks