Need help please nute burn or deficiency?

Hi there if anyone can look at the pictures of my plant and tell me what the problem is that would be awesome.
Not to sure if it has nutrient burn or a deficiency because I did something stupid and put food spikes in when I started to flower it. Now it's 4 weeks into flower. First noticed the problem about 2 weeks into flower and thought it was slight nute burn but now I'm not sure because of the yellowing between the leaves vains.
Let me know what it looks like thanks.

Excellent leaf structure and overall health looks pretty good. Not sure if the spikes are an issue or not. I started spiking my plants this past grow and was told it is important to put your spikes in at transplant in new dirt where roots are not currently growing. If you put them in on top of current roots I would expect you might get a little root burning around where you put them but with that healthy of a specimen, I would think she would still be okay overall.

Your purple can be a result of lower temps, genetics, or lack of potassium and phosphorous (which are locked out in cold temps, or when deficient, or ph off, or when overfed).

So those are my opening thoughts and it would help if you posted more info on your soil, feeding schedule, ppms, etc.

Hey thanks for the reply. I'm glad u think the plant looks good.
Its growing in organic soil. The temp stays good between 19 and 27 Celsius.
I only have given food twice 3 food spikes when I started the plant and 6 spikes when started flowering.
I did just push the 6 spikes in from the top so that would explain why it's not happening everywhere on the plant
thanks for your input

Hey thanks for the reply. I'm glad u think the plant looks good.
Its growing in organic soil. The temp stays good between 19 and 27 Celsius.
I only have given food twice 3 food spikes when I started the plant and 6 spikes when started flowering.
I did just push the 6 spikes in from the top so that would explain why it's not happening everywhere on the plant
thanks for your input

Minor nute burn