form and comfort?

How many times have you ridden since you stated riding again and over a period of many days/weeks?

Tyler520 said:

After a 2-year hiatus from casual cycling to keep in shape, I have restarted my regimen. Weight gain, and lack of energy and strength aside, I have noticed some physical discomfort when I finish my morning rides.
Firstly, my hands and wrists tend to hurt, and go numb. - I've done my best to keep my wrists and hands in line with my forearms, and I don't lock my arms.
Also, my tail bone kills me - just sitting in a chair during the day at my office is misery. I find this odd, because it wasn't an issue in the past, and when I am riding, I am not really bearing on my tail bone while I ride.
PS: I ride a hybrid bike, not a road bike, in case that matters when giving advice about form.

Bike fit is something that quite often changes over time, so it wouldn't be a surprise if a bike whose fit used to be comfortable was no longer comfy. Gaining wait can certainly change that fit or make things that were not noticeable in the past suddenly tortuous. You might want to consider having a fitting done at a bike shop. Fittings costs can start at $50 or so and go up, depending on the shop and what kind of fit is being done. IMHO, spending 50 payolas to solve a pain-on-the-bike issue would be worth it.