Judy, can you tell us; are the cracks primarily angular, beginning low at corners and angling up and away from the corners? Are they more straight up and down the wall? And where are they located; mid-wall, vertical/horizontal, etc.
How was the backfill done, and by whom? Bobcat, backhoe...done by the waterproofing contractor? Did they compact the backfill near the walls with heavy equipment, or use a power tamper?
Any details like this you can provide will help to prove or disprove suspicions here, and better be able to advise you.