I had pneumonia three times in 18 months. I just never could get past it. I was so weak I was barely walking, and spent at least two weeks completely on bed rest. My dr. was on the edge of admitting me. I had the added adventure of being allergic to antibiotics, and went through four kinds in two weeks. Dr. said the pneumonia was going OK but the meds were killing me. ;-)
It's nothing to mess around with, that's for sure. I second the REST REST REST advice. That, and as much fluid as you can get in you is the best home care that you can do. I used a warm steam vaporizer to help keep the phlegm moving, as well as a prescription "expectorant. I feel your pain, and hope that you get some relief soon. Don't be surprised if it takes several weeks to get back to your old self though. It really zaps you.