Hi Yvette,
If i were you i'd get an ENT appointment arranged through your Dr. My Aunt has always had a croaky voice,nasal voice/ nose ect and finally found after investigation that she had poylps near her vocal cords (hence the need to continually clear her throat)and also needed her sinus' flushed out, both easily remedied and fairly painless. This may not be your case as everyone is different, but can give you an idea to the cause.
Hope your sorted soon, take care,
Suzi x