Still hurting some from Pleurisy...?

Ok I have been on the antibiotic now 3 days(its the 5 day dose of Zithromax)and I usually only take the anti-inflammatories at night so I can sleep because it hasn't really hurt much during the day with the pleurisy. However, last night out of nowhere it started hurting again upon breathing and was more on the side of my ribs than in my back. Then this morning it was gone again and now I have it hurting in my back more up into my shoulder blade. Does pleurisy move around often like this and should it be gone by now having been on the antibiotics? I know that it is not the infection but a "side effect" from the pneumonia I have but you would think being on the antibiotics that the pneumonia getting better would make this better and not keep switching back and forth. I guess my question is does it just take longer to get better than I anticipated, or could the pleurisy be from lupus itself and not the infection and just be coincidental that it occurred with the pneumonia? I have also been having bouts on and off of lupus symptoms in general each day. They will come and go within a day its quite strange really. Last night I was sitting down and all of the sudden got a cold chill and almost started to sweat and got super weak/tingly and had some burning pain etc. It happened in a matter of seconds and when I woke up this morning my fingers and face were puffy and I was stiff but what I had last night was gone. Any ideas? Not sure what to make of it I guess considering this is the first bout of pneumonia/pleurisy ive had since ive had lupus. Thanks. *hugs* -Lupie Britt