Thanks for writing in to Heathcare Magic!
I think the interaction or the intolerance to moxifloxacin
is the cause for you dizziness
Anyway the problem started with taking moxyflox so it must be connected to this.
I would advise to switch to another class of antibiotics like Cefixime
for the pneumonia
To be on safer side stop moxyfloxacin and inform your physician.
If you have any further query please let me know I would try to answer it for you.
Wish you a great health!