I have been wearing braces for 4 months now. No indication of any change now. Is this normal?

Hi! Since, it's only been 4 months, it's possible that your orthodontist has not started closing the spaces yet. The first wire usually works out the rotated teeth, and severe crowding. But I would mention that the gaps really bother you during your next visit, so your orthodontist can start closing the spaces sooner.