Need advice

Hi, I am (30M) recently turned 30 this november. I have a girlfriend with whom im in relationship with past 10 years, Now a days i feel that the spark between us is dead, things are more functional than emotional. We talk daily and meet once or twice in a month (her parents are strict). She is good and loyal but she overthinks everything, overthinking problem i can say.

Is it normal to lose connection or spark in a long-term relationship? Is it same with marriage as well? If you have faced this already what did you do to re-ignite the spark or how did you solve it?

Or did you just go with the flow and let life take the control, please suggest