It may feel like déjà vu for Dollar General (DG -0.36%) investors these days. The stock was down 44% in 2024 in what was a near repeat performance of how badly it did in the previous year, when its shares fell by nearly 45%. The discount retailer is dealing with rising costs and increased competition, making it difficult for it to produce strong results.Has the stock bottomed out and can investors still trust it? Or is Dollar General simply too dangerous of an investment to be holding on to right now?Why ha ...