I started tecfidera about the same time as you. Where I am they keep us on half dose for 4 weeks. I’ve been religiously eating meals with lots of fat and protein when I take it and have been ok so far (apart from a couple of flushes where I went from my usual pale to lookout like I had sunstroke within a few minutes and some nausea when I had a lower fat meal). They let me move up to full dose after 2 weeks.
I’ve been recording my food in an app and have actually lost weight because I want to snack between meals. (This is a first for me!)
I hope you can find a way forward.