WHY won't my nitrogen deficiency fix itself. (+Rep for good advice)

I noticed some nitrogen deficiency about a week ago. It made sense that I had it since my plant was 5 weeks old and I hadn't given it any nutes. Since I noticed it, I started giving it my AN Iguana juice grow in full doses almost every time I watered (which is every other day).

Now I do think that the pot is a little bit small for a plant of its size. Even though, I just just started flowering, I think I'm going to transplant and see if that helps because I always see a spurt of healthy growth after I transplant.

Btw, I'm watering with distilled so I don't think PH is the problem.

Can anyone give me some advice on how to correct my Nitrogen deficiency? Any tricks?

bummmmmmp ^

Why are you so sure thats your problem post pics and you might get more people answering your question ,words are good but a picture tells a 1000 words

Are you growing in soil, soiless, hydro? Need more info. Whether or not you are using distilled water you should check your PH. It can make a huge difference. Just a suggestion but using distilled water for feedimg your plants has got to get expensive. It is really not necessary. Get a big water jug from the army surplus or camping store, get a couple. Fill them with water and just leave them sit for 24 hrs. This will allow all of the chloramines and chlorine to dissipate. Then you are good to go. Always keep a full one though you don't want to run out. The water in my area has tons of calcium and I have no issues. Nor do I need to supplement with a calcium or magnesium product.
If filling the jugs is an issue, go to the home store and get an adapter for your kitchen faucet that will allow you to connect a garden hose. The part on the end of your faucet is called an aerator it can be removed to install the 3/4" hose adapter. Then you can just put back on your aerator, if you want all it does is slow the water down. They call them water savers. We plumbers call them flow restrictors.

You could have nute lock thus its not able to absorb any nutes. This can also look like its not getting enough so you have to be careful imo I would do a flush

What is your soil mix? Are you using any other nutrient? Have you tested your Ph (both before your water and the runoff)? Distilling the water does not necessarily mean you have balanced Ph. In fact, distilled water (as in zero TDS), will have zero cations and anions and will fluctuate Ph wildly as soon as you add anything to it (such as the soil and/or the nutrient). Distilled water in itself will have no Ph buffering.

There is a reason why you notice strong growth when you transplant to new soil - you are not replacing the nutrients the plant is absorbing that exists in the soil with your nutrient regiment. It is rarely as simple as just needing more Nitrogen. I am thinking your problem will lie somewhere in this area.

I think you might want to consider transplanting to a bigger pot to accommodate healthy root mass for the size of plant you have. I grow organically in soil and usually move plants that size into 3+ gallon pots, depending on what I am planning to do with them (mothers vs. SoG or normal flowering). Then I would recommend you reevaluate your nutrient regiment. From my limited knowledge, AN products are very specific and you need a concert of products to create a healthy AN feeding schedule.

I disagree with the flushing recommendation, that is usually a last step you take to correct a significant imbalance in your parameters. I do not believe this is the case based on your pictures.

I dont know anything about AN nutes, but what size pots are those? nevertheless, potting up is a very recommended procedure especially if you are doing soil, coco, etc

As far as the AN Iguana, I looked and its only 3% on 'Nitrogen'. Since you are now into bloom, you won't be needing as much N, and will be focusing on phosphorous, potassium, calcium, etc, . But if you're giving them nutes everytime you water, be careful not to over-fert. LESS IS MORE