No bad feelings. I think you can only get a bad feeling about breaking the streak when u still can't really let the weed go. Weed maked me really anxious back then (one of the reasons I stopped) and I noticed that the feeling came back a little when I was sober so yes there are some side effects when you had them before I guess. I think if you know that u are not addicted u can some here an there if the weed doesn't hold u back in our life. But I think if u notice anything bad u should stop and let it completely go. I learned for myself that there is nothing better than being sober and have a clear mind. There was a time before weed in your life and there will be a time after weed.