Hydroxychloroquine and Lacosamide

I’m not too sure on where to start but i’m curious if anyone else takes Hydroxychloroquine (Plaquenil) alongside Lacosamide (Vimpat)? I just started HCQ at 200mg daily and have been on 200mg Lacosamide daily for around 2 months now… I’ve quite literally just begun HCQ treatment but i’m worried about possible side effects. My neurologist brushed off the idea of loss of effectiveness or interactions with HCQ saying that “my body will tell me if something’s wrong” (not very reassuring for me!)

I keep waking up in and out of sleep with a sort of heaviness and feeling that’s mimicking low BP but my personal cuff reader says it’s normal (hard to tell if it works well though). Not sure what’s nausea or just anxiety.

I’m sorry if this is all over the place, had no idea if these should be separate questions or not! I’ve elevated my legs and I’m trying to get back to sleep but I keep waking up so it’s all very disorienting and i’m wondering if this lightheaded/faint-ish feeling will go away after i adjust to the HCQ or if it’s because of my overlapping medications. Just wanna avoid a useless ER visit and wondering if a cardiologist referral would ease my worries in the long term lol