Extra Same Vowel Repeater

def extra_repeat_vowels(vowels):
#individual counters for each vowels a,e,i,o,u
    vowel_count_a,vowel_count_e,vowel_count_i,vowel_count_o,vowel_count_u=0,0,0,0,0
    vowel_copy=''
#loop until all the characters of the string vowel

    for v in vowels:
#check for vowel a or A and increment the respective vowel counter by one
        if (v=='a' or v=='A'):
            vowel_count_a+=1
            if vowel_count_a>1: vowel_copy=vowel_copy+v.lower()*vowel_count_a
            else: vowel_copy=vowel_copy+v
                
#check for vowel e or E and increment the vowel counter by one
        elif(v=='e' or v=='E'):
            vowel_count_e+=1
            if vowel_count_e>1: vowel_copy=vowel_copy+v.lower()*vowel_count_e
            else: vowel_copy=vowel_copy+v
                
#check for vowel i or I and increment the vowel counter by one
        elif(v=='i' or v=='I'):
            vowel_count_i+=1
            if vowel_count_i>1: vowel_copy=vowel_copy+v.lower()*vowel_count_i
            else: vowel_copy=vowel_copy+v
                
#check for vowel o or O and increment the vowel counter by one
        elif(v=='o' or v=='O'):
            vowel_count_o+=1
            if vowel_count_o>1: vowel_copy=vowel_copy+v.lower()*vowel_count_o
            else: vowel_copy=vowel_copy+v
                
#check for vowel u or U and increment the vowel counter by one
        elif(v=='u' or v=='U'):
            vowel_count_u+=1
            if vowel_count_u>1: vowel_copy=vowel_copy+v.lower()*vowel_count_u
            else: vowel_copy=vowel_copy+v

#for consonants including special characters ingnore by concatenating them
        else: vowel_copy=vowel_copy+v
    vowels=vowel_copy
    return vowels