Severe pain in top of foot !

Hello all ! I'm currently 21 weeks 2 days with baby girl ! Just found out Saturday we are getting the princess we hoped for ! Anyway the last 2-3 weeks I've been having some pretty bad pains in the top of my foot but figured it would go away with time. The last few days I've barely been able to put any weight on it an the pain has woken me up out of my sleep the last few nights 😩 I hopped on google an read its tendonitis due to the extra weight of being pregnant an most women don't get relief until baby is born...I've still got 4 months to go an still so much to do ! I need my foot lol any one else experience this ? please share any ideas or remedies u tried that helped ! I will b calling my doctor first thing in the morning ! Thanks in advance !