Niacin effects o/t

I took 100mg of niacin for the first time yesterday after dinner and after approximately 45 mins I felt warm and tingly, mostly on my face and head.It lasted for about twenty-five mins.Today,I decided to take it after my lunch(vegetable juice and a green salad)and after app twenty mins I feel like I'm on fire.Holy smoke,this is real intense....I'm red all over,my legs and back feel like I'm sitting on a fire log,I'm burning up all over...what a flush!

I guess I should take it after eating solid food,right?Are you there,Hanna?Help please.It's been twenty minutes now and it's still going on.