Boobs SOS!

Okay so boobs....I know they are going through changes but I'm curious if anyone knows what could be going on with me at the moment and if anyone else experienced this?! I honestly didn't get much boob pain until 5 weeks pregnant then after a few weeks it calmed wayyyy down after growing a cup size! Now at 16 weeks I'm dying!! They feel 10x more heavy, and feel harder than normal. My nipples started this weird hard shaping thing about a week ago. Read it was normal so I ignored but now it's to the point where my husband has to massage my boobs to make them relax and feel half way normal! Help?!