Thanks for writing your query.
can manifest as pain in different parts of body, but after reading your description of symptoms, it seems that there might be some muscle pull due to wrong posture during yoga
or excessive yoga done during initial phase.
You can do hot fomentation and apply some pain relieving gel. If pain persists take some pain killer and muscle relaxant
If pain still persists get yourself examined by a medical professional.
I hope this is helpful to you.