Yes, this means your body was challenged and its used to being worked now. Try doing a different training and if your lifting weights add some more weight.
This is because the first time you do weight training your muscles are just getting used to the contraction and expansion from using weights. The second time you do it, you are typically going to be sore. Although being sore, shows that your muscles have been working right when you were using weights. The soreness is what makes you feel weaker.
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Training your abs 3 times a week is the best choice for good results. If your abs are still sore you can still train, but be careful.
For free weight training I would look in to http://www.sparkpeople.com/resource/fitness_articles.asp?id=1033. It is a very informative article that discusses the benefits of weight training and gives you tips on weight training.
weight training strengthens your skeletal muscels
Yes.
Strength and possibly power (depending on the type of weight training)
If by training you mean exercising.. if your workouts burn more calories than your daily intake, then yes.. you will lose wait. Unless you are training to bulk up of course.
sore groin ,groin muscle pain
Muscle training is lifting weights and weight exercises
my breast is sore and i eat a lot of spicy