Welcome to the forum. Your symptoms are indicative that either you have taken an over dose of the said pills and you have been suffering from the side effects or the pills did not suit you and have produced adverse effects with inflammation and pain that you have been complaining of.
You should visit an emergency room, get examine, you may need infusions to counter the effects. You may need a stomach wash, depending upon the situation and diagnosis after clinical examination.
Take warm beverage/soups, anti-allergy
medicines can give you temporary relief but see a doctor and co-operate. You will be fine soon. Take care.