Those plants make me feel sad.

Okay, when you start flowering, stetching is 100% normal. For the first 2-3 weeks, the plant stretches, making room for the incoming buds. It is normal for the plant to double in size during the first 2-3 weeks of flowering.

To me though, it looks although your plants are hurting for more light, and stretching for flowering. Your plants will continue to grow upwards and stretch even more if you don't give them more light. So do it, dammit!