I asked a question before and 3 doctors agreed the answer was 'cataplexy'. i was wondering is it serious and will i have to see a neurologist?

Possibly: However you may want to start with your family doctor. I usually only send patients with narcolepsy w/cataplexy to neurologist or sleep specialist if it cannot be relatively easily controlled with medication.

Possibly: As you may know, cataplexy is a brief spell of loss of muscle tone, ranging from a shaky chin to completely falling down. It is associated with narcolepsy. Ideally, you want a doctor who is up to date on current medical treatments and has some experience in caring for patients with this condition. Your primary care doctor may be able to do that, but you may need to see a specialist initially.

Possibly: Cataplexy can be minor or very troublesome depending on the severity. It is frequently associated with narcolepsy. Both these conditions can be treated by a neurologist or sleep specialist. Ask your primary care provider if a consultation is necessary.