I'm not Pavarotti, neither am I Freddie Mercury, but after many, many years of vocal practice & research, I was able to expand my baritone range to tenor with more confidence. As to expect from a tenor, I'm also very, very confident with different types of voices (falsetto etc.)
Now, the past year did not give me too much space for vocal practicing, but when I really got into it again a few months ago, following happened:
It took me a few weeks to really warm up and get into it again. My range goes from ~E3 to C#5 & with my falsetto I could reach up to a B5. Luckily, I was even able to add another two notes & now secure a C#6.
I know everyone has their bad days when it comes to singing, but I've been having huge problems with certain VOWELS in my tenor-range chest notes, and no matter what I try I can't fix it.
What happens is; starting at around F#4 and going up to around B4, my "Ahh" vowel got EXTREMELY weak & I crack in a very uncontrolled way, and it just sounds awful.
My "Ee" vowel also got weaker (not as extreme as my Ahh vowel though) & for example in "We are the Champions", I cannot hit the high "WEEE (Bb4) are the champions..." anymore.
Everything else though & my falsetto are 100% fine. I feel almost that I lost my tenor ability & now I'm only limited to Baritone chest notes... What's strange, "Uhh" vowels are absolutely no problem to hit in terms of tenor chest notes.
I really don't know how to help myself! Is such cracking linked to not warming up properly? I assume it might have to do with days where I was not too motivated to warm up a lot. I even do a lot of breath exercises and researched the most proper ways of how your jaw/tongue has to be placed when you sing those high "Ahh" vowels.
About how much does a vocal nodule check-up cost in California? (if anything like that exists)
Is there anything like a voice maturing & having those kind of symptoms?
PS: A year ago I had absolutely no problem singing those wide open "Ahh" vowels. This is just so frustrating.. even the best warm-up routine does not help me.