Hi Wen,
It doesn't sound good what you are dealing with. When you call make sure you tell them that you need to get in asap...that you are having serious issues regarding your medications.
I agree with LFW. Appointments are made for checking in and touching base with you. My pdoc always tells me here is your next appt. date, but you know if you need to see me sooner, just call and they will get you in.
Keep us posted.