3 weeks ago I took the morning after pill Levonelle after the condom burst. Ever since I feel like a different person. Nausea almost every day, sore breasts, headaches, feeling very tired and light headed. I am 5 days late on my period and have taken 3 pregnancy tests all negative. The Nausea is the worst part. It scared me so much I had an endoscopy done thinking something may be wrong but it all came clear! so I am putting down the nausea to the pill? Has anyone had these side affects? I am so worried and feel like I will never feel normal again.