Hey there knobby knees.. or is that knotty shins? 
I am familiar with some things that could cause this.. and Mathias is right... it could be Bartonella. It might be worth a look-see, next trip to the doctors, cause often the tests don't pick it up on the first go around, especially if there are several co-infections involved.
I would get.. and I am using me for an example but have seen this with other folks too...
I would get lumpy knots along the shin bone too. Sometimes it felt like a wash board if I ran my finger down the edges of the bone.
There are... ok.. try this first.
Feel the breast bone... (YOURS of course... it MIGHT be dangerous to feel someone elses).. down along the outer side... first on one side... then the other. If it is tender and maybe even lumpy... that may show you what I am getting ready to tell you.
Don't mind me today.. I have about a half dozen screws lose... (DID I SPELL IT RIGHT CHARLIE? I am trying! hehehe)
Anyhow... there are lymph nodes along the edge of the breast bone on either side. I think this is also the case with the shin bones.. but don't quote me on that. My "knots" would be all along there... and sometimes NOT... ha ha ha...
NO.. I am NOT on drugs... or smoking any weed with Willie again... just stupid today... sorry. But even fighting stupidness.. I at least am TRYING to help!
I have two.. no three things I normally do for the knots.
1. Take antibiotics... but NOT just for the KNOTS... but because I need them anyhow..
2. LIGHTLY.. and I mean LIGHTLY... massage them.. towards the heart so the flow of garbage released goes up instead of down. (Assuming YOUR heart isn't located in your big toe or something like that.)
Yes.. this will be my last post for awhile.. I can see I am NOT KNOT right today.
3. Ignore the KNOTS. I just play with my Scrabble game instead of my leg bones for a few days.
Soooooooooooo...
Basically, NOT to worry about the KNOTS.
Unless they appear on your head.. where MINE MUST be located this afternoon.
Actually.. do have the LLMD check your KNOTS when you go... just to be sure.. but he will probably say NOT to worry about the KNOTS too.
And I am sorry... I am NOT normally like this...
Im'm nommally a lot KNOTTIER.
NO... NUTTIER!
