Distance tracking is very wrong and map location jumps around

[SvSol]

This is the 6th day this week that I went for roughly a half hour walk in a local park. For some reason the tracking just keeps jumping around wildly, as if I am walking a mile away and then back, instantly. The map of my walk after is completely wrong, and it tracks much more distance and steps then I actually walked. My walk today was one and a half miles, thirty four minutes, and around three thousand and seven hundred steps. When I finished the exercise it said I did over four miles and eleven thousand steps.

I am not doing anything differently than I was before and prior to the latest update everything worked fine. I have updated the app, my watch, disconnected my phone and reconnected, as well as reset my stride length and left the auto detect stride length off. I'm not sure what else to do, my default Sansung health app is tracking more accurately than my watch is at this point.

 It also automatically made several laps, that I didn't ask it to make, as I was just moving normally. 

[wocean]

On your Fitbit select walk exercise and scroll down to settings and make GPS is turned on. I updated this week and the GPS was disabled

[SvSol]

Where do I find that on the app? When I select start exercise and walk it just starts counting down.

[wocean]

On the watch in the exercise app you select Walk and then scroll down and there is GPS setting toggle button, turn it on.

[SvSol]

I found that after asking, but thank you! Starting the walk from my watch, instead of from my phone, seemed to track better but still jumps around and adds extra distance. I have always started exercises from the phone app, rather than the watch screen, and when starting it on the app it tracks even worse. I took a walk with starting the exercise from my watch today, after I was done and it was recorded, it still just randomly drew a straight line across my neighborhood instead of having a path of me walking around, and had inaccurate distance. I made sure the GPS was turned on.