Help identifying problem with plant

[zspar]

This plant is in about week 2 of flowering with no added nutrients except for compost tea. It developed a strange almost zebra striped pattern of dead tissue on about 10 of the mature leaves on one side of the plant. I cant identify what the problem is. I sprayed part of the stem with a 50% vinegar 50% water mixture to get rid of some mold on the main stem.
Here is one of the leaves.

Any help would be appreciated.

 

[zspar]

My theory at the moment is that the vinegar couldve messed up the soil pH but Im not sure

 

[improvise]

Hi this might help you Problems, Pests & Disease Control . regards

 

[NuttyProfessor]

any cats pissing on it ? strange for one side

 

[zspar]

No it's up in an elevated box the cats couldn't touch it