need some help.

I have had a medical kush plant for about 4 weeks now. I grew it some "garden soil" i fucked when i did this because garden soil doesnt let oxygen enter the pot(its meant for gardens). After seeing this happen i transplanted it to some "potting soil" and now its rapidly growing but has yellow spots, and another question do plants get stunted when you strasplant them more than once because mine didnt but im afraid the second time idk do they?? just curious i barely transplanted today to the potting soil. i put eggshells to

As long as you arent disturbing the root system to much, it shouldnt stunt growth. Myself, I only transplant once. After starting from seed or a clone, I give it a couple weeks (a bit longer on clones) to get a good little root system going. As for the spotting, need to see some pics. What soil are you currently using? feeding anything yet?