Muscle strain Q

Ok. So I wasn't sure whether to put this in Sports&Fitness or here, but here goes.

Two days ago now I woke up with serious pain in my calf. When I went to step out of bed, I planted my heel and toes to the floor like usual and a BIG shock of pain went through my leg. Upon examination by me, the muscle feels knotted; but no redness or bruising visible-so probably not a lot of internal bleeding. Anyhow, for these two days it hasn't gotten any better; it hurts so badly that I can not stretch it out properly at all. I have been doing the whole R.I.C.E thing as much as I can. Not helping.

Question: how long until the pain subsides and I can start rehabing it and walking normally?
This sucks and is a setback to my goals; and a friggin' annoyance in doing the things I normally accomplish. I do not want to baby it; but I don't want to do further damage.

Note: going to a doctor is not an option unless this could possibly be anything actually serious. I go to doctors way too much as it is; unavoidably. Sports doc or physio is not an option right now bc I don't have the money for that!

Also, what else can I do to speed up recovery?

When I was asking around with fam/friends and looking up info; the idea seemed to be that it can not be a calf strain bc then it would be hard to go on my tiptoes. AS it is for me; I can not go down on my heel and have been having to go on my tiptoes to walk.

I am pretty sure the muscle was damaged by too much weight and exertion on my part.

Thanks.