Stomach hurts when doing push ups?

I''m trying to lose weight and my friend suggested that I should do push ups everyday. A few days ago I could do 8 without having to stop but now my stomach hurts like hell (area under my belly button) whenever I push myself up.. I can barely do 3 now! :( Am I doing something wrong? Did I injure myself or something?

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That''s normal and is actually a good sign. Your dormant muscles are finally doing some work, it will take about a week or two for the pain to go away if you are consistent and exercise through the pain. No pain no gain, is actually the truth when it comes to starting a physical fitness regimen.

• Any exercise should be finished by exercising those opposing muscle groups to avoid cramps and lactic acid build-up. In the meantime, drink plenty of fluids to eliminate the lactic acid build-up. Then do sit-ups, again stretching at the end of your exercise period. Push-ups are typically most successful when you have really good strength in your triceps. Arms are smaller muscles than legs so you would do fewer repetitions for arm exercises.