Will one get punished if one questions Islam?

i am a born muslim and was tought since i was a toddler the way of life. i am now in my 30s and love reading. so over the years i have read up alot about islam and it’s history. i have doubt and also disagree about certain things which came across. i am ashamed to be saying this out load and need to know if this is normal and will i be punished? i try hard and fight with evil to be the best possible muslim i can be. i reallt strive, but then i cannot help to question at times. it is hard sometimes just to accept what is being told, since many different personalities take things in differently.