He recommend I take it about an hour before sleep, which is what I've been doing.
Yep. It does just take some time to titrate up to a working dose. It's always up to the individual doctor, but I took four weeks to get to 100mg.
I know it's really hard navigating this stuff and feeling like you don't have a conduit to your doctor.
I also had to ask about how I could contact him in case I ran into any issues with the meds. I thought it was odd that he didn't just provide all this info up-front to me. I mentioned it to my therapist and she didn't really comment on it, so I thought maybe it was standard practice. I'm wondering why you're saying psychiatrists are hard to reach. How is that possible?
What you are going through is very similar to what I remember feeling. My very first psych saw me for 40 minutes, gave me cymbalta and a dosing schedule, and said he'd see me in a month. I relied heavily on my then-therapist just in order to take the damn stuff, not to mention having never really taken any regular medication in my life and not understanding why it was OK for me to be waiting four weeks with no exchange of how it was going.
Psychiatrists are not therapists; it's useful to remember that they are physicians. Most physicians will not consult on anything over the phone, they want to see you in the office or they want you to go to a hospital in crisis. Otherwise, they need you to follow the standard protocol for what they are dosing. It's partially liability, I think, but I also understand the logic behind it - they need to have your physical body in front of them to really do what they do, even when it is making determinations about anti-depressants.
Your job as a patient is to read all the literature that comes with your prescription (which it sounds like you have done). When you go to the pharmacist and they say "do you have any questions for the pharmacist?" it's not just to be nice - its because many people end up with questions they didn't ask their doctor about. Pharmacists are really, really knowledgeable, and you can consider going to talk to yours about your interactions. They are trained for that.
I think I am lucky that I ended up finding a psychiatrist who also does therapy, and she does have an interest in making sure her patients are not having anxiety about the medication process. But it was for sure hard for me, before I had her, learning how little emotional support (as in none) I could count on from my psychiatrist. It's just not what they do. They start with the drugs that they believe will work best, and adjust from there.
Maybe you can get more direct support from your therapist for the anxiety you are experiencing around the medication, go and see your pharmacist and discuss your interactions and concerns there, prioritize taking the call from your doctor (if you can at all excuse yourself from whatever you are doing for 15 minutes), and if you cannot shake the feeling that something is medically wrong, then go to the ER.
(I'm not going to tell you that you don't have seratonin syndrome, but it is important to remember that it has onset within a few hours of taking whatever is pushing your seratonin too high, and that the symptoms really show up like symptoms and they don't lessen. So, shaking that happened for the first 24 hours but now is gone is an indicator of a side effect, not a syndrome response.)