Going forward, can you call the office instead of emailing? I see my pdoc for therapy as well sometimes and if I call I almost always get a same day response unless he isn't there. If it's urgent and he won't be in, then there is an on call pdoc from his practice that can help with med related stuff. Email isn't generally used for urgent issues, especially since it's possible the email doesn't go directly to your pdoc but to a general server and is screened by the staff first. That's how it works in my pdoc's office and it pretty much means he may not see the email until later or the next day. I'd also talk to your doctor just so he's aware that you called multiple times. If he didn't offer a cell phone, then he probably prefers to keep all calls going through the office staff and not directly to him.