Ive had a knot I've noticed on my 2nd to the bigest toe. For atleast 3 or 4 months that I no of....over the last week I went to bed got up it was like it was broke. Hurting couldn t walk on it. I kinda pampered it an walk without putting pressure on it . It got a little better. Then all the sudden it swelled an it trobbs an hurts with no pressure it is swollen all the way around the joint that had the knot on it .....what could it be.....