I've had that happen with my old Mac laptop. Maybe try a different outlet. With my old charger I would have to keep plugging it back into the laptop/wiggling it until it reached that 'right' spot where it would light up and start charging. I had to eventually cave in and buy a new one.
The problem with it was that the wire inside the cord was getting frayed/broken so there wasn't a very good connection between the outlet/laptop due to faulty wiring. Could be the same case depending on how old it is.
@Dunquixote That sounds awesome about your drawings! I remember the ones that you did last year (dang it's crazy that it's already been that long lol) and they were amazing! Sometimes a break between working can be beneficial, so I get that. There are a lot of times that I want to just get done so much on my antique restorations on a given day, but I know if I rush it, I won't like the results. Good luck with your big project! I would really like to see it, whenever you may finish it. (If you're alright with that, that is)
@LadyDestani That's great news! I'm glad that you're well-rested and feeling better. I really should get more sleep myself, but I normally get 4-5 hours. I do it to myself haha...I just don't like the idea of having to go to bed so early just for work. It feels like I don't get to do as much as I wanted to in a given day.