Hi!!
Re. your nodule question. If you have nodules the thing you would notice would be that your voice would sound husky, certainly when you sing, but also when speaking normally. However, huskiness can also be through laryngitis, fatique, dry vocal folds, haemorrage and the like.
You will not feel any pain with nodules as the vocal folds do not have any feeling. When you have an infection such as laryngitis for example, it's generally the muscles that are giving you pain.
Hope that's of some use? Remember, it's actually quite hard to get nodules, so nine times out of ten, most vocal students/users don't have them!
All best wishes,
Ian Voice wrecker to the stars!
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