Noticing when I'm overdoing it

My hands feel tingly and numb on some days. I initially dismissed it as a by product and nothing significant since I can work with it in my day to day. But I noticed that it's typically after I've been working hard. It's become a pattern and before every significant flare I've had this symptom lasted a few weeks. For now I'll call off work and rest and see if it gets better. Im excited because If I can just use this as an indicator instead of having to work myself into a flare limit testing my MS is gonna be much easier.