Honda low on trans fluid, speedometer needle dies

I noticed while driving my 95 Accord that my “drive” light was flashing, shortly after that the transmission slipped a little. I checked fluid, found it didn’t register on the stick. Added 2 quarts, light stopped flashing but car still slipped a little at low speeds. Next day drove it 50 miles highway, no problem, no glitches.

Could the low fluid have affected the speedometer needle? I suspected I had a timing belt issue but it rode fine today.