I'm sorry you are going through this. A diagnosis like this is hard to handle and it can feel even worse when our loved ones don't understand. Do you see a therapist? If so, it may make sense to do a couple of family sessions. He or she can assist in helping to explain bipolar disorder, what the symptoms truly look like and how they can best support you. Sometimes a therapist can provide greater assitance because they are typically less clinical in their explanation and they also have experience treating the emotional struggles people go through during the acceptance process. Also, a therapist can help you work through your feelings about how you've been treated by your family. If not, you may want to pick up a book or two for your parents. There are several good ones available targeted at loved ones supporting those with bipolar disorder.

Keep in mind though that you can only control you. You can control your actions and what you're doing each day to stay as healthy as possible. You control how much you learn and how seasoned your toolkit is to handle your symptoms. You control who you lean on for support. If your parents aren't the best support and make things worse, go elsewhere. You came here for support from those who can understand. You're off to a good start!

My only other thought is to print out a checklist of manic and depressive symptoms. If your parents accuse you of being in an episode and you feel like you are stable, maybe you can step through the list together and discuss your perspectives. For example, you'd be able to discuss the potato chip example. If you're just hungry and you're not experiencing a decreased need for sleep or agitation or racing thoughts or pressured speech or any of the other symptoms you could probably both agree you're just hungry.

Good luck to you, and welcome to PC. I hope you find the support here you are seeking.