Hey mate just had a look your girls looks to me like may be a root issue you are having . my gorilla glue looked exact same when I got an aphid infestation In my medium due to being over water and just created perfect conditions for the larvae in soil to multiply , I tried an array of different things with no results . that was until I done a complete transplant - i made a soak bath with hydrogen peroxide ,neem oil and water with a little insectial soap to emulsified neem and basically soaked the whole root mass In bath for 20 mins min before replant in clean pot with new medium , hope this may help in some way bro - always learning
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