Yes it is nbormal. During the veg phase your plants wont need so much nitrogen and this is their way of stopping leaf growth and indicating end of life is near. That is why they produce so many buds because they want to catch that male pollen. If they dont catch any they will produce mor and more flowers. It is normal and you arte doing great. Welcome to the forum. Click the rep star at the bottom left of the post if I have helped you. It is very much appreciated. Come to my journal if you have more questions I am happy to answer anything you have there.