depends... the meds you are takeing or begining of the a high low carb dietthere is many ways to do this (like keto or actkins or ect). ether way you need supplments for that. besides foods that boost mag and potassium (potassium are bananas and dried apricots and raisins ect and mag are pumpkin seed, almand, spinach, peanuts and cashews ect) there is vitamins. i do keto for 2 (almost 3) decades now. and i like to research stuff (like what i am eating and nutrishion and alternative meds).

I do take a iron supplement I eat a banana each morning for potassium so far it has been working

My blood levels ( of my meds) fluctuate. I've never hit zero though.
Is it possible that something else you're taking is interfering with the absorption of your meds?

My Epileptologist and I had a similar conversation about 2 years ago. She told me that a seizure study that was done about 5 years ago revealed that a typical Tonic Clonic seizure episode (1-2 minutes) uses the same amount of of physical body energy as an 8 hour aerobic workout. This is why I keep electrolyte drink mixes and drinks with me at home and when I travel. So I can sip on these when coming out of a seizure. Doing this will cut my recovery time in half.

Yes.it happens to me sometimes... its usually a very temporary thing... you levels bomb because of overworking the system... they did the same for me.. with the pills and diet
... but I noticed levels always go back to normal in a couple days.... also my kidneys shut down sometimes for the same reason.. just being severely overworked.. but everything seems to go back to normal within a day or 2.. provided no more Seizures